Question

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

Answer 1

the latent heat gets used in interconversion of state of matter

Answer 2

During the change of state of any matter heat is supplied to the substance . The molecules of matter observe heat to overcome the force of attraction between the particles at this period of time temperature remain constant . This extra heat is acquired by the molecules in form of hidden heat called latent heat to change from one state of matter to the other state .