On the basis of kinetic theory of gases, explain how does a gas exert pressure.

Explanation

In random motion , the molecules collide with each other and also with the walls of the container. As the collisions are elastic in nature, there is no loss of energy , but a change in momentum occurs due to the force created.
During each collision , the molecules impart certain momentum to the walls of the container. By hte transfer of momentum , the walls experienced per unit area of the walls of the container the pressure exerted by the gas.