Question

A gas exerts pressure on the walls of the container. Give reason.

Answer 1

cause the particle of gas are continuously moving by moving they hit each other and as well the wall of the containers .

Answer 2

Because in the gaseous state, the particles move about randomly at high speed. Due to this random movement, the particles hit each other and also the walls of the container. The pressure exerted by the gas is because of this force exerted by gas particles per unit area on the walls of the container.