Question

What happens to the kinetic energy of the molecules of a substance when it is heated?

Answer 1

1. In molecular kinetic theory, temperature is defined as the measure of the average kinetic energy of the molecules.
2. Heat energy causes the rise in the temperature of the substance.
3. Rise in temperature causes the molecules of the gas to move faster.
4. This heat energy is converted into kinetic energy. As a result, the vibrations become faster.
5. Thus, the kinetic energy of the molecules gets increased by increasing the temperature.