Write the postulates of kinetic molecular theory of gases .

Explanation

Postulates of kinetic therory of gases:
1. Every gas consists of a large number of tiny particles called molecules. 2. The gas molecules are considered hard, spherical and perfectly elastic.
3. The gas molecules move in all possible directions along a straight line path with very high velocities. As a result of which they collide with each other and also with the walls of the container. Hence their velocity and direction of motion concentinuously change.
4. The actual volume occupied by gas molecules is negligible when compared to the total volume of the gas.
5.There are no attractions or repulsions among the gas molecules.
6. There is no loss of kinetic energy (K.E) When the gas molecules collide with each other or with the walls of the container.
7. The pressure exerted by a gas is due to the bombardment of the gas molecules with the walls of the container.
8. The average Kinetic Energy (K.E.) of gas molecules is directly proportional to the absolute temperatue of the gas (or) average K.E. `prop`T
9. There is no gravitational force of attraction on the motion of gas molecules.