Question

Q.4 Write Postulates of Kinetic theory of gases. Write a short notee on : a) Vapour Pressure c) Viscosity b) Surface tension​

Answer 1

Answer:

1 .The theory explains gas as a collection of tiny, hard spheres that interact with each other and with the surface of the wall. The spheres represent the gas molecules and they behave according to the law of motion developed by Newton in the 17th century.

Explanation:

1 ) At a particular temperature, pressure exerted by vapours on the walls of the container when water and vapour are in equilibrium, is known as vapour pressure.

2) Viscosity is defined as the force of friction between the successive layers of a flowing liquid. It is also the resistance to the flow of a liquid.

3 ) Surface tension of a liquid decreases with increase temperature and becomes zero at critical temperature