Combined Gas Law putting it all together!. Combined Gas Law. P 1 V 1 = P 2 V 2. T 1. T 2. f or a fixed amount (# moles) of gas. Combined Gas Law. g iven 5 of 6 variables, can identify 6 th i f a variable is constant, just ignore it P 1 V 1 = P 2 V 2 - PowerPoint PPT Presentation
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Combined Gas Law
putting it all together!
Combined Gas Law
P1V1 = P2V2T1T2for a fixed amount (# moles) of gas
Combined Gas Lawgiven 5 of 6 variables, can identify 6th
if a variable is constant, just ignore it
P1V1 = P2V2 T1 T2
Avogadros Hypothesisequal volumes of gases at same T and P
contain equal # of particles
6.02 x 1023 particles
Molar Volumereminder:
1 mole of any gas at STP occupies 22.4 L/mol
3 containers same size, same T, same P, 1mole gasBox A HeBox
BN2Box C CH4What can you say about # of molecules in each box? #
molecules is the same in each box (1 mole each substance)What can
you say about # of atoms in each box?B = 2 x A ; C = 5 x A
