Question

Define latent heat of fusion and latent heat of vapouristation

Answer 1

THE AMOUNT OF HEAT ENERGY REQUIRED TO CONVERT ONE KG OF SOLID INTO LIQUID STATE AT ATMOSPHERIC PRESSURE AT ITS MELTING POINT IS CALLED LATENT HEAT OF FUSION.

THE AMOUNT OF HEAT ENERGY REQUIRED TO CONVERT ONE KG OF LIQUID INTO GASEOUS STATE AT ATMOSPHERIC PRESSURE AT ITS BOILING POINT IS CALLED LATENT HEAT OF VAPOURISATION.

Answer 2

the amount of heat energy required by 1kg solid to liquid is called latent heat of fusion.
the amount of heat energy required by 1kg of liquid to turn in to vapour is called latent heat of vapourisation.