Question

explain the phenomenonof evaporation and boiling on the basis of kinetic theory of matter?

Answer 1

By the kinetic molecular theory (particle model), all matter consists of particles, there are spaces between the particles, the particles are in constant random motion, and there are forces of attraction and repulsion between the particles.

Furthermore, temperature is defined to be a measure of the average kinetic energy of the particles.

Evaporation is a change of phase from liquid to gas explained as follows :
When particles in the liquid phase are heated, they gain kinetic energy and move faster and further apart. Eventually they have enough energy to escape the forces of attraction holding them together in the liquid phase and they move very fast and far from each other and exist in the gaseous phase.

Answer 2

Answer:

The molecules are in a motion within its boundary in a liquid .They collide with each other . During the collision some molecules below the surface of liquid attain sufficient kinetic energy to overcome the force of attraction of other molecules, and in turn their intermolecular spacing increases.That molecules move to the surface of liquid after absorbing sufficient heat from the surrounding, they escape out in the atmosphere. This process is known as evaporation