Question

Why does the temperature remain constant during the melting of ice even though heat is supplied continuously?

Answer 1

• The heat supplied at the melting point of ice is used up in overcoming the inter-molecular forces of attraction between the molecules.
• As the average kinetic energy of the system remains constant, the temperature also remains constant.
• The temperature remains constant during the melting of ice because the heat supplied to ice is used for the transition of state rather than increasing the temperature of ice.