Question

For any substance, why does the
temperature remain constant
during the change of state?

Answer 1

Explanation:

The temperature remains constant during the change of state because The heat supplied is used up in breaking attractive forces and for changing the state of matter.

Hope it helps you........

Answer 2

Because with the increase of temperature, more number of particles get enough kinetic energy to go into the vapour state. Hence temperature remains constant during the change of state.