Question

Explain boiling process on the basis of kinetic theory of matter.

Answer 1

1. Boiling: The change of liquid to vapours on heating at a constant temperature is called boiling.
2. Heating of the liquid increases the average kinetic energy of liquid molecules.
3. Molecules acquire sufficient kinetic energy required to overcome the force of attraction of other molecules.
4. These molecules start leaving the liquid not only at the surface but also near the walls of the containing vessel and bubbles are seen on the walls of vessel.
5. This causes agitation in the liquid and this is called boiling.