Question

What happens to the range of energies of the particles in matter when the temperature is increased?
1. The range of energies becomes narrower.

2. The range of energies does not change.

3.The range of energies becomes broader.

4.The range of energies cannot be determined.

Answer 1

The range of energies of the particles in matter when the temperature is increased changes as follows :

• When the temperature is constant, all particles have same average kinetic energy.

• But after increasing temperature, particles start vibrating and moving with greater energy.

• All particles do not have same speed after increasing temperature.

• Therefore, the range of kinetic energies increases.

• Still the average kinetic energy remains same for all particles.

Correct option is : 3) The range of energies becomes broader.