Question

what is the difference between melting point and enthalpy of fusion?

Answer 1

Melting point is a temperature at which a metal or object starts melting

and

The enthalpy of fusion of a substance, also known as (latent) heat of fusion, is the change in its enthalphy 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.