Question

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

Answer 1

Answer:

All the substance change their state on fix temperature it can be melting point , Boiling point, or Freezing point. a fix temperature is required for Change .

Answer 2

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It is due to the latent heat as the heat supplied to increase the temperature of the substance is used up to transform the state of matter of the substance hence the temperature stays constant.