2008-07-16

Kinetic Theory of Gases

The basic assumption for the kinetic theory of gas is as follows:

- Gas is composed of molecules.
- Gas molecules are continuosly in random and independent motion in all directions at high and different speed.
- The motion of gas molecules abides by all of the Newton Laws of Motion.
- All collisions between the gas molecules (i.e. one with another) and the walls of the container are assumed to be perfectly elastic. Therefore, momentum and kinetic energy are conserved during collison.
- The volume of the molecules can be conserved compared to the volume occupied by the gas.
- The force amongst the gas molecules can be neglected except during collision.
- The time period of a collision can be neglected when compared with the time interval between two collisions.

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