Question

Obtain the expression for pressure exerted by a gas on the walls of the container​

Answer 1

Answer:

The gas exerts pressure on the walls of container because molecules of gas are in random motion and strike with the walls of container and hence exert the thrust (force) on the wall. The thrust exerted by molecules per unit area of the wall of the container is called pressure.

Answer 2

Freely moving particles of gas hit the walls of its container continuously and randomly therefore such random and erratic motion of gas particles exerts pressure on the walls of the container.