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Veerapandian.K
Mechanical Engineeringwww.pandianprabu.co.cc
Source website: http://boomeria.org/physicstextbook/physglossary.html
The Kinetic Theory of Matter
Democritus 460-357 BC
Capillarity:
Capillary tubes.Liquids: Lycopodium Powder is almost a liquid.
Surface Tension.Surface Tension and Viscosity. Ice in Cooking Oil in Cylinder.
Terminal velocity: marbles in Karo Syrup.
Kinetic Theory:
1. Gas Pressure. The force of molecular collisions. A balloon expands as air is added, yet it is still
compressible. Air thermometer.
2. Heat Conduction. From molecule to molecule the energy is transferred.
3. Evaporation. Moving molecules escaping thru the surface tension. Warmer evaporates faster.
4. Vapor Pressure. Force of evaporating molecules. Steam power!
5. Expansion upon heating. Moving and colliding molecules push each other farther apart. Ball & Ring,
(The Brass Monkey.)
6. Diffusion. The intermingling of moving molecules Coloring in water,NH3 gas on the loose. 50+50= 95!
7. Osmosis. Diffusion thru a porous membrane. Graham's Law-- The rate of diffusion is inversely proportional to the square root
of the molecular mass. Heavy molecules diffuse more slowly.
8. Brownian Motion. Smoke & dust particles are jostled around by molecular impact. Keeps clouds up!
9. Electron microscopy photographs!
Momentum vs Tensile Strength. Can a cable attached to the rear axle of a cop car rip off the axle? Video:
Gas Model Video:If a gas molecule were as large as a bee, and the container as large as a duck, we could see the impact of molecular collisions on the walls of the container,
Video:
Veerapandian.K
Mechanical Engineeringwww.pandianprabu.co.cc
Source website: http://boomeria.org/physicstextbook/physglossary.html