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The WATS approach to assessment was developed as part of an LTSN Engineering Mini-Project, funded at the University of Hertfordshire which aimed to develop a set of 'student unique' tutorial sheets to actively encourage and improve student participation within a first year first ‘fluid mechanics and thermodynamics’ module. Please see the accompanying Mini-Project Report “Improving student success and retention through greater participation and tackling student-unique tutorial sheets” for more information. The WATS cover core Fluid Mechanics and Thermodynamics topics at first year undergraduate level. 11 tutorial sheets and their worked solutions are provided here for you to utilise in your teaching. The variables within each question can be altered so that each student answers the same question but will need to produce a unique solution. What follows is a set of STUDENT UNIQUE SHEETS for WATS 4.
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Fluid Mechanics and ThermodynamicsWeekly Assessed Tutorial Sheets,
Student Sheets: WATS 4.
The WATS approach to assessment was developed as part of an LTSN Engineering Mini-Project, funded at the University of Hertfordshire which aimed to develop a set of 'student unique' tutorial sheets to actively encourage and improve student participation within a first year first ‘fluid mechanics and thermodynamics’ module. Please see the accompanying Mini-Project Report “Improving student success and retention through greater participation and tackling student-unique tutorial sheets” for more information.
The WATS cover core Fluid Mechanics and Thermodynamics topics at first year undergraduate level. 11 tutorial sheets and their worked solutions are provided here for you to utilise in your teaching. The variables within each question can be altered so that each student answers the same question but will need to produce a unique solution.
FURTHER INFORMATION
Please see http://tinyurl.com/2wf2lfh to access the WATS Random Factor Generating Wizard.
There are also explanatory videos on how to use the Wizard and how to implement WATS available at http://www.youtube.com/user/MBRBLU#p/u/7/0wgC4wy1cV0 and http://www.youtube.com/user/MBRBLU#p/u/6/MGpueiPHpqk.
For more information on WATS, its use and impact on students please contact Mark Russell, School of Aerospace, Automotive and Design Engineering at University of Hertfordshire.
© University of Hertfordshire 2009 This work is licensed under a Creative Commons Attribution 2.0 License.
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 1
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-3.20 kJ and W1 = -22.70kJProcess 2 Q2 = 79.80kJ and W2 = -68.50kJProcess 3 Q3 = 73.70kJ and W3 = -14.40kJ
If the work transfer during the fourth process i.e. W4, is -59.50 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 26C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 36C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 36C (1 mark)
Q3 0.60kg of water enter a device as a saturated vapour at 0.26 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 1
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 2
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-13.00 kJ and W1 = 63.90kJProcess 2 Q2 = -17.00kJ and W2 = 52.60kJProcess 3 Q3 = 28.00kJ and W3 = 42.90kJ
If the work transfer during the fourth process i.e. W4, is 39.70 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 26C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 26C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 32C (1 mark)
Q3 0.20kg of water enter a device as a saturated vapour at 0.18 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 2
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 3
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-7.90 kJ and W1 = -12.20kJProcess 2 Q2 = 72.10kJ and W2 = -18.70kJProcess 3 Q3 = -65.20kJ and W3 = 59.90kJ
If the work transfer during the fourth process i.e. W4, is 59.30 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 28C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 30C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 32C (1 mark)
Q3 0.50kg of water enter a device as a saturated vapour at 0.20 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 3
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 4
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-9.70 kJ and W1 = 11.50kJProcess 2 Q2 = -0.10kJ and W2 = 5.60kJProcess 3 Q3 = -34.40kJ and W3 = -33.00kJ
If the work transfer during the fourth process i.e. W4, is -21.80 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 24C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 26C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 26C (1 mark)
Q3 0.70kg of water enter a device as a saturated vapour at 0.28 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 4
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 5
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-49.70 kJ and W1 = -41.60kJProcess 2 Q2 = 44.60kJ and W2 = 61.20kJProcess 3 Q3 = -15.60kJ and W3 = 41.20kJ
If the work transfer during the fourth process i.e. W4, is 48.10 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 34C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 36C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 30C (1 mark)
Q3 0.90kg of water enter a device as a saturated vapour at 0.24 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 5
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 6
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-69.10 kJ and W1 = 41.30kJProcess 2 Q2 = 51.10kJ and W2 = -29.20kJProcess 3 Q3 = -8.80kJ and W3 = 16.80kJ
If the work transfer during the fourth process i.e. W4, is -41.80 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 30C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 30C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 38C (1 mark)
Q3 0.90kg of water enter a device as a saturated vapour at 0.12 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 6
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 7
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =25.00 kJ and W1 = -0.40kJProcess 2 Q2 = -14.30kJ and W2 = 2.50kJProcess 3 Q3 = -52.30kJ and W3 = 44.40kJ
If the work transfer during the fourth process i.e. W4, is -48.30 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 26C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 40C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 26C (1 mark)
Q3 0.50kg of water enter a device as a saturated vapour at 0.28 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 7
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 8
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =11.10 kJ and W1 = -31.70kJProcess 2 Q2 = -30.50kJ and W2 = -29.60kJProcess 3 Q3 = -28.50kJ and W3 = 43.70kJ
If the work transfer during the fourth process i.e. W4, is 1.90 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 24C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 22C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 26C (1 mark)
Q3 1.00kg of water enter a device as a saturated vapour at 0.14 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 8
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 9
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =58.10 kJ and W1 = -13.50kJProcess 2 Q2 = -65.90kJ and W2 = -56.30kJProcess 3 Q3 = 3.20kJ and W3 = -46.50kJ
If the work transfer during the fourth process i.e. W4, is 70.50 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 38C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 36C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 28C (1 mark)
Q3 0.90kg of water enter a device as a saturated vapour at 0.28 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 9
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 10
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =28.00 kJ and W1 = 48.20kJProcess 2 Q2 = 45.60kJ and W2 = 69.50kJProcess 3 Q3 = 12.20kJ and W3 = 65.20kJ
If the work transfer during the fourth process i.e. W4, is 33.80 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 22C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 34C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 34C (1 mark)
Q3 1.10kg of water enter a device as a saturated vapour at 0.22 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 10
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 11
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-77.80 kJ and W1 = -78.60kJProcess 2 Q2 = 42.10kJ and W2 = -67.40kJProcess 3 Q3 = -75.00kJ and W3 = 24.70kJ
If the work transfer during the fourth process i.e. W4, is -16.80 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 34C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 34C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 20C (1 mark)
Q3 1.10kg of water enter a device as a saturated vapour at 0.14 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 11
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 12
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =55.50 kJ and W1 = -79.80kJProcess 2 Q2 = -11.00kJ and W2 = -0.60kJProcess 3 Q3 = -58.30kJ and W3 = -73.20kJ
If the work transfer during the fourth process i.e. W4, is 42.60 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 28C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 34C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 20C (1 mark)
Q3 0.60kg of water enter a device as a saturated vapour at 0.12 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 12
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 13
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =63.30 kJ and W1 = 15.70kJProcess 2 Q2 = 37.60kJ and W2 = 49.20kJProcess 3 Q3 = 25.70kJ and W3 = -71.30kJ
If the work transfer during the fourth process i.e. W4, is 9.50 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 34C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 30C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 36C (1 mark)
Q3 0.50kg of water enter a device as a saturated vapour at 0.30 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 13
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 14
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =47.20 kJ and W1 = -10.90kJProcess 2 Q2 = 11.60kJ and W2 = -60.70kJProcess 3 Q3 = -47.70kJ and W3 = -34.90kJ
If the work transfer during the fourth process i.e. W4, is -35.90 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 36C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 40C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 28C (1 mark)
Q3 0.60kg of water enter a device as a saturated vapour at 0.20 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 14
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 15
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =3.20 kJ and W1 = 13.30kJProcess 2 Q2 = 6.90kJ and W2 = -72.20kJProcess 3 Q3 = 58.60kJ and W3 = 73.20kJ
If the work transfer during the fourth process i.e. W4, is -8.00 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 38C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 32C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 28C (1 mark)
Q3 0.80kg of water enter a device as a saturated vapour at 0.18 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 15
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 16
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-41.40 kJ and W1 = -32.10kJProcess 2 Q2 = 29.70kJ and W2 = 59.50kJProcess 3 Q3 = 3.70kJ and W3 = -50.40kJ
If the work transfer during the fourth process i.e. W4, is -76.10 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 26C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 26C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 30C (1 mark)
Q3 0.30kg of water enter a device as a saturated vapour at 0.12 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 16
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 17
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-78.30 kJ and W1 = -7.80kJProcess 2 Q2 = -62.90kJ and W2 = -79.90kJProcess 3 Q3 = -79.70kJ and W3 = -74.40kJ
If the work transfer during the fourth process i.e. W4, is 39.50 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 30C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 22C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 38C (1 mark)
Q3 1.10kg of water enter a device as a saturated vapour at 0.18 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 17
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 18
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =69.80 kJ and W1 = 20.70kJProcess 2 Q2 = 26.70kJ and W2 = -56.60kJProcess 3 Q3 = 65.20kJ and W3 = -14.10kJ
If the work transfer during the fourth process i.e. W4, is 39.30 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 38C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 32C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 38C (1 mark)
Q3 1.10kg of water enter a device as a saturated vapour at 0.18 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 18
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 19
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =39.80 kJ and W1 = -72.20kJProcess 2 Q2 = -61.60kJ and W2 = 57.00kJProcess 3 Q3 = 73.00kJ and W3 = 55.10kJ
If the work transfer during the fourth process i.e. W4, is 28.80 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 36C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 20C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 32C (1 mark)
Q3 0.80kg of water enter a device as a saturated vapour at 0.14 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 19
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 20
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =67.90 kJ and W1 = 24.70kJProcess 2 Q2 = -24.60kJ and W2 = -29.70kJProcess 3 Q3 = 77.80kJ and W3 = 17.70kJ
If the work transfer during the fourth process i.e. W4, is -57.80 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 38C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 24C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 30C (1 mark)
Q3 0.70kg of water enter a device as a saturated vapour at 0.30 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 20
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 21
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =41.50 kJ and W1 = -65.20kJProcess 2 Q2 = 27.10kJ and W2 = 11.60kJProcess 3 Q3 = -72.50kJ and W3 = 55.70kJ
If the work transfer during the fourth process i.e. W4, is -52.40 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 22C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 32C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 34C (1 mark)
Q3 0.70kg of water enter a device as a saturated vapour at 0.16 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 21
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 22
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-70.40 kJ and W1 = -7.30kJProcess 2 Q2 = -39.10kJ and W2 = 17.60kJProcess 3 Q3 = -42.70kJ and W3 = 9.60kJ
If the work transfer during the fourth process i.e. W4, is -58.30 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 28C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 26C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 24C (1 mark)
Q3 0.50kg of water enter a device as a saturated vapour at 0.20 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 22
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 23
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-23.40 kJ and W1 = 70.10kJProcess 2 Q2 = -52.70kJ and W2 = 61.50kJProcess 3 Q3 = -54.80kJ and W3 = 28.00kJ
If the work transfer during the fourth process i.e. W4, is -43.20 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 36C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 34C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 22C (1 mark)
Q3 1.00kg of water enter a device as a saturated vapour at 0.24 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 23
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 24
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =43.60 kJ and W1 = 56.10kJProcess 2 Q2 = 22.50kJ and W2 = -36.40kJProcess 3 Q3 = -43.60kJ and W3 = 9.40kJ
If the work transfer during the fourth process i.e. W4, is -13.60 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 30C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 30C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 26C (1 mark)
Q3 0.30kg of water enter a device as a saturated vapour at 0.28 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 24
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 25
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-76.70 kJ and W1 = 14.90kJProcess 2 Q2 = -5.60kJ and W2 = 11.20kJProcess 3 Q3 = -59.40kJ and W3 = 22.60kJ
If the work transfer during the fourth process i.e. W4, is 13.20 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 34C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 24C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 34C (1 mark)
Q3 0.60kg of water enter a device as a saturated vapour at 0.26 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 25
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 26
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-67.00 kJ and W1 = 6.90kJProcess 2 Q2 = 36.90kJ and W2 = 70.00kJProcess 3 Q3 = -52.60kJ and W3 = -69.40kJ
If the work transfer during the fourth process i.e. W4, is -53.40 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 34C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 28C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 34C (1 mark)
Q3 0.90kg of water enter a device as a saturated vapour at 0.20 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 26
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 27
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =10.50 kJ and W1 = 77.70kJProcess 2 Q2 = -43.20kJ and W2 = 75.00kJProcess 3 Q3 = -15.50kJ and W3 = 1.90kJ
If the work transfer during the fourth process i.e. W4, is 11.80 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 28C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 32C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 20C (1 mark)
Q3 1.10kg of water enter a device as a saturated vapour at 0.28 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 27
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 28
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =58.20 kJ and W1 = 0.50kJProcess 2 Q2 = -40.10kJ and W2 = -36.00kJProcess 3 Q3 = 24.60kJ and W3 = 15.30kJ
If the work transfer during the fourth process i.e. W4, is -62.30 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 36C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 28C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 38C (1 mark)
Q3 0.50kg of water enter a device as a saturated vapour at 0.30 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 28
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 29
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =0.40 kJ and W1 = -3.70kJProcess 2 Q2 = 18.70kJ and W2 = 39.00kJProcess 3 Q3 = 65.40kJ and W3 = 2.90kJ
If the work transfer during the fourth process i.e. W4, is -31.70 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 20C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 20C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 24C (1 mark)
Q3 0.50kg of water enter a device as a saturated vapour at 0.28 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 29
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 30
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-21.20 kJ and W1 = 17.90kJProcess 2 Q2 = -50.40kJ and W2 = 61.30kJProcess 3 Q3 = 26.90kJ and W3 = 56.00kJ
If the work transfer during the fourth process i.e. W4, is 41.50 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 22C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 22C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 22C (1 mark)
Q3 1.20kg of water enter a device as a saturated vapour at 0.22 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 30
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 31
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =30.90 kJ and W1 = 20.70kJProcess 2 Q2 = -57.40kJ and W2 = 64.00kJProcess 3 Q3 = -47.10kJ and W3 = 19.40kJ
If the work transfer during the fourth process i.e. W4, is -78.20 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 28C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 22C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 36C (1 mark)
Q3 0.30kg of water enter a device as a saturated vapour at 0.14 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 31
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 32
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =76.70 kJ and W1 = 8.50kJProcess 2 Q2 = 48.70kJ and W2 = -11.60kJProcess 3 Q3 = 60.00kJ and W3 = -61.30kJ
If the work transfer during the fourth process i.e. W4, is 70.00 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 28C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 34C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 34C (1 mark)
Q3 0.30kg of water enter a device as a saturated vapour at 0.22 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 32
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 33
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-41.60 kJ and W1 = -44.60kJProcess 2 Q2 = 51.80kJ and W2 = -72.30kJProcess 3 Q3 = 59.90kJ and W3 = -74.80kJ
If the work transfer during the fourth process i.e. W4, is 37.20 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 26C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 32C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 28C (1 mark)
Q3 0.60kg of water enter a device as a saturated vapour at 0.14 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 33
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 34
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-41.70 kJ and W1 = 72.50kJProcess 2 Q2 = 66.80kJ and W2 = -75.20kJProcess 3 Q3 = -60.50kJ and W3 = 65.10kJ
If the work transfer during the fourth process i.e. W4, is 6.60 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 40C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 28C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 32C (1 mark)
Q3 0.50kg of water enter a device as a saturated vapour at 0.14 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 34
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 35
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =19.90 kJ and W1 = 1.80kJProcess 2 Q2 = 12.80kJ and W2 = 67.30kJProcess 3 Q3 = -55.10kJ and W3 = 75.60kJ
If the work transfer during the fourth process i.e. W4, is -52.40 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 32C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 38C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 24C (1 mark)
Q3 0.70kg of water enter a device as a saturated vapour at 0.16 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 35
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 36
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-63.10 kJ and W1 = 43.30kJProcess 2 Q2 = -17.00kJ and W2 = 66.10kJProcess 3 Q3 = -47.30kJ and W3 = 55.20kJ
If the work transfer during the fourth process i.e. W4, is 9.60 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 40C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 34C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 34C (1 mark)
Q3 0.80kg of water enter a device as a saturated vapour at 0.20 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 36
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 37
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-64.30 kJ and W1 = 40.90kJProcess 2 Q2 = 58.10kJ and W2 = -57.80kJProcess 3 Q3 = 54.90kJ and W3 = 30.90kJ
If the work transfer during the fourth process i.e. W4, is 57.00 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 38C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 22C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 34C (1 mark)
Q3 0.80kg of water enter a device as a saturated vapour at 0.18 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 37
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 38
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-4.60 kJ and W1 = 70.20kJProcess 2 Q2 = 68.40kJ and W2 = -33.90kJProcess 3 Q3 = 61.60kJ and W3 = 49.80kJ
If the work transfer during the fourth process i.e. W4, is -25.80 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 36C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 32C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 30C (1 mark)
Q3 1.10kg of water enter a device as a saturated vapour at 0.20 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 38
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 39
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-28.20 kJ and W1 = 75.80kJProcess 2 Q2 = 8.30kJ and W2 = -43.80kJProcess 3 Q3 = -12.50kJ and W3 = 38.10kJ
If the work transfer during the fourth process i.e. W4, is 2.50 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 30C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 38C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 38C (1 mark)
Q3 1.10kg of water enter a device as a saturated vapour at 0.26 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 39
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 40
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =68.70 kJ and W1 = -39.30kJProcess 2 Q2 = -71.10kJ and W2 = -0.70kJProcess 3 Q3 = -54.70kJ and W3 = -26.90kJ
If the work transfer during the fourth process i.e. W4, is -64.70 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 38C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 26C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 32C (1 mark)
Q3 0.60kg of water enter a device as a saturated vapour at 0.16 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 40
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 41
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-37.20 kJ and W1 = 74.20kJProcess 2 Q2 = -65.30kJ and W2 = 60.10kJProcess 3 Q3 = -6.40kJ and W3 = -6.20kJ
If the work transfer during the fourth process i.e. W4, is 37.10 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 24C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 24C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 36C (1 mark)
Q3 1.00kg of water enter a device as a saturated vapour at 0.24 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 41
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 42
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =46.30 kJ and W1 = 3.00kJProcess 2 Q2 = -12.90kJ and W2 = -16.50kJProcess 3 Q3 = 42.10kJ and W3 = -45.30kJ
If the work transfer during the fourth process i.e. W4, is 29.70 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 24C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 22C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 32C (1 mark)
Q3 1.10kg of water enter a device as a saturated vapour at 0.28 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 42
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 43
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-26.30 kJ and W1 = 10.50kJProcess 2 Q2 = 62.10kJ and W2 = -5.50kJProcess 3 Q3 = -40.00kJ and W3 = 46.90kJ
If the work transfer during the fourth process i.e. W4, is 52.10 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 20C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 32C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 30C (1 mark)
Q3 0.80kg of water enter a device as a saturated vapour at 0.28 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 43
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 44
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-25.20 kJ and W1 = 68.80kJProcess 2 Q2 = -34.70kJ and W2 = -77.70kJProcess 3 Q3 = 72.70kJ and W3 = -7.00kJ
If the work transfer during the fourth process i.e. W4, is 18.60 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 22C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 28C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 34C (1 mark)
Q3 0.60kg of water enter a device as a saturated vapour at 0.16 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 44
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 45
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =42.90 kJ and W1 = -50.90kJProcess 2 Q2 = 70.90kJ and W2 = 51.60kJProcess 3 Q3 = 31.70kJ and W3 = -39.60kJ
If the work transfer during the fourth process i.e. W4, is 79.50 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 30C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 24C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 32C (1 mark)
Q3 1.00kg of water enter a device as a saturated vapour at 0.20 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 45
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 46
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-20.00 kJ and W1 = 35.30kJProcess 2 Q2 = -32.10kJ and W2 = -12.40kJProcess 3 Q3 = 2.20kJ and W3 = -23.20kJ
If the work transfer during the fourth process i.e. W4, is -29.60 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 34C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 36C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 38C (1 mark)
Q3 1.00kg of water enter a device as a saturated vapour at 0.20 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 46
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 47
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-35.10 kJ and W1 = 5.90kJProcess 2 Q2 = 40.00kJ and W2 = -41.50kJProcess 3 Q3 = -5.50kJ and W3 = -45.40kJ
If the work transfer during the fourth process i.e. W4, is 34.60 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 20C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 28C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 28C (1 mark)
Q3 1.00kg of water enter a device as a saturated vapour at 0.18 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 47
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 48
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =70.10 kJ and W1 = -71.70kJProcess 2 Q2 = 3.60kJ and W2 = 62.10kJProcess 3 Q3 = -77.30kJ and W3 = 68.20kJ
If the work transfer during the fourth process i.e. W4, is 23.10 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 36C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 34C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 32C (1 mark)
Q3 1.00kg of water enter a device as a saturated vapour at 0.18 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 48
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 49
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =71.90 kJ and W1 = 31.90kJProcess 2 Q2 = -11.20kJ and W2 = 39.20kJProcess 3 Q3 = -22.60kJ and W3 = -10.70kJ
If the work transfer during the fourth process i.e. W4, is -21.50 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 38C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 20C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 24C (1 mark)
Q3 0.70kg of water enter a device as a saturated vapour at 0.24 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 49
Fluid Mechanics and Thermodynamics.Weekly Assessed Tutorial Sheet 4.
Student Number 50
Name
Hand out date Hand in date
Q1. A system executes a cycle which is made up of four processes. The heat and work transfers that take place in the first three processes are:
Process 1 Q1 =-22.30 kJ and W1 = -55.90kJProcess 2 Q2 = 28.40kJ and W2 = -38.30kJProcess 3 Q3 = -24.10kJ and W3 = 5.30kJ
If the work transfer during the fourth process i.e. W4, is 26.50 kJ determine the corresponding heat transfer Q4 (kJ) (1 mark)
Q2. Using the Thermodynamic and Transport Properties of Fluids -
i) Find the specific enthalpy (kJ/kg) of saturated water in the liquid phase at 26C (1 mark)1
ii) Find the specific enthalpy (kJ/kg) of saturated water in the vapour phase at 30C (1 mark)
iii) Find the specific enthalpy change (kJ/kg) between saturated water vapour and saturated water liquid when it is at 38C (1 mark)
Q3 0.20kg of water enter a device as a saturated vapour at 0.20 Bar and, after undertaken a process, leaves as a saturated liquid. Calculate
i) the internal energy of the water as it enters the device (kJ), (1 mark)
ii) the internal energy of the water as it leaves the device (kJ) and (1 mark)
iii) the change in internal energy as a consequence of the process (kJ). (1 mark)
iv) Given the conditions noted in Q3 find the saturation temperature of the water (C) (1 mark)
WATS 4. Student number 50
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