Question

for any substance,why does the temperature remain constant during the change of state​

Answer 1

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The temperature remains constant during the change of state because the heat energy which is supplied to change the state of matter is used in breaking the intermolecular forces and other attractive forces. Hence the temperature remains constant as all the heat is used up and no external heat is released or absorbed.

Answer 2

Answer:

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 for attractive force. this heat which does not raise the temperature of the body is called latent heat