Chapter 5, Problem 5.79PAE

Interpretation Introduction

Interpretation:

Condition under which the postulates of the kinetic theory break down

Concept introduction:

The postulates kinetic theory of gases is:

1. All gases are made of molecules which move randomly in all direction.
2. The size of a molecule is much smaller than the average separation between the molecules.
3. The molecules exert no force on each other or on the walls of the container except during collision.
4. All collisions between two molecules or between a molecule and a wall are perfectly elastic. Also, the time spent during a collision is negligibly small.
5. The molecules obey newton’s law of motion.
6. When a gas is left for sufficient time, it comes to a steady state. The density and the distribution of molecules with different velocities are independent of position, direction and time.