Answer:
Freezing temperature:
It is the temperature at which a liquid state of substance converts in to the solid state.
Ex :The freezing temperature of water is 0°C.
Melting temperature:
It is the temperature at which a solid state of any substance covert in to the liquid sates.
Ex : Temperature above the 0°C of water
The heat required to melt the solid is know as heat of fusion. Heat of fusion of water nearly about 334 J.
The heat required to covert liquid state to vapor state is known as heat of vaporization.The heat of vaporization of water nearly 2230 J.
