Why does the temperature remain constant during the change of state?

Answer: The heat or energy absorbed or released during a phase shift of a matter is known as latent heat.

• The supplied energy or latent heat is used to change the binding energies rather than increase the kinetic energy of the molecules during a change of state of matter
• Since the heat energy produced is used up in changing the state of matter and also for breaking numerous bonds or attractive forces, the temperature of any substance remains constant during the change of state