Define the explain the standard enthalpy of fusion (Molar enthalpy of fusion).

Explanation

The enthalpy change accompanying the conversation of 1 mole of a solid substance into the liquid at its melting point is called the standard enthalpy of fusion.
The standard enthalpy of fusion of a substance depends largely on the strength of intermolecular forces in the substance undergoing fusion. For example ionic solids have very strong interparticle forces, Such substance have high values of enthalpy of fustion Molecular solids have weak interparticle forces. They have low enthalpy values of fusion.