Q 3. Give reasons
(b) A gas exerts pressure on the walls of the container.
A gas exerts pressure on the walls of the container because the molecules of the gas are continuously in random motion because of their high kinetic energy.
So, that the molecules of gas vibrating and hitting on the walls of the container and as a result exerts pressure on walls.
Q.A gas exerts pressure on the walls of the container.
Tha moving particles din a gas Billi se baith each other and also with the walls of the container.