Write down the postulates of kinetic theory of gases.

Explanation

Accumulate to kinetic theory,
(i) The molecules of a gas are in a state of continuous random motion.
(ii) They collide with one another and also with the walls of the vessel. Whenever a molecule collides with the wall. It returns with a changed momentum and an equal momentum is transfused to the wall (conservation of momentum).
Accumulate to Newton's law,
(i) The transfer of momentum to the wall is equal to the fore excited on the wall.
(ii) The force excited per unit area of the wall is the pressure of the gas.
Hence a gas excites pres. due to the continuous call of its molecules with the walls of the vessel.