Question

For any substance,why does the temperature remains constant during change of state.

Answer 1

becoz the heat goes in changing the state of matter and the temp remain constant

Answer 2

The temperature of any substance remains 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 Latin heat.