Question

Q.6 For any substance, why does the temperature remain constant during the
change of state?​

Answer 1

Explanation:

The temperature of any substance remain constant during the change of state because the heat energy supplied is used up in changing the state of matter and also this heat is used for breaking of several bonds or attractive forces.This heat, which does not raise the temperature of the body, is called Laten heat.

Answer 2

The temperature remains constant because the heat absorbed is used to change the state and is known as Latent Heat(Hidden Heat).