Lect+5+08 - This lecture will focus on developing a plain...

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This lecture will focus on developing a plain language understanding of the microscopic molecular behavior of gases. The Maxwell-Boltzman distribution function for speed and velocity of molecules in an ideal gas at thermal equilibrium tells us everything about the microscopic behavior. The translational motion of the gas molecules is modelled by classical mechanics in this model Understanding how to use the Kinetic Theory of gases to calculate mean free paths, diffusion and effusion through a hole. Real Gases (Non-ideal gases) Van der Waals Models for Non-Ideal Gases A molecular view of Gases, Liquids and Solids
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Microscopic Kinetic theory of ideal gases Identical gas particles separated by large distances relative to their size (particles themselves occupy no significant volume) Particles move in random directions with a distribution of speeds (Boltzman speed distribution) No attractive or repulsive forces between gas particles (ideal gas) All collisions with walls and with other gas molecules are elastic (energy is conserved) Pressure on walls of container is caused by collision with many many particles as they reverse direction
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