What do you understand by the term ‘latent heat of fusion’? How much is the latent heat of fusion of ice?

**Answer:**

The amount of heat that is required to change 1 kg of solid into liquid at atmospheric pressure without any change in temperature at its melting point, is known as latent heat of fusion. The latent heat of fusion of ice in SI unit is 3.35 x 10^5 J/kg.