Question

explain the following (1) Latent heat of vaporisation (2) Latent heat of fusion ​

Answer 1

The enthalpy of vaporization, also known as the latent heat of vaporization or latent heat of evaporation, is the amount of energy that must be added to a liquid substance, to transform a quantity of that substance into a gas. The enthalpy of vaporization is a function of the pressure at which that transformation takes place.

The enthalpy of fusion of a substance, also known as (latent) heat of fusion, is the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure.

Answer 2

The amount of heat required to change 1 kg of liquid state to gaseous state at its boling point is called latent heat of vapourisation.

latent heat of fusion⬇⬇

It is defined as the amount of heat required to change 1kg of solid substance into liquid state at its boiling point is known as latent heat of fusion.