Which term is used to describe the amount of heat that is required to melt 1 mol of a substance?

The heat needed to change a substance from solid to liquid at its melting point is called its heat of fusion. For 1 mol, this amount is often called the molar heat of fusion. Specific heat refers to heating a substance without changing its phase, while heat of vaporization describes changing liquid to gas.

AI-written and checked against the verified answer.