Question

DEFINE LATENT HEAT OF FUSION ​

Answer 1

Answer:

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

Answer:

A solid state has closely packed molecules than liquid state. In the process of the melting, heat is absorbed from the surrounding to increase the intermolecular distance between the molecules to change the distance of the molecules.

The amount of heat energy required in the process of melting for a unit mass of solid to be converted into liquid is called Latent heat of fusion.

Heat Energy Q=mL

where m is the mass of the substance and L is the latent heat of Fusion

SI unit of Latent Heat of Fusion is J/kg.