Answer: Option (b) is the correct answer.
Explanation:
Latent heat of melting or fusion is defined as the amount of heat necessary to convert 1 gram of a solid into liquid state at it its melting point without changing its temperature.
So, when water molecules are present in solid state that is, in the form of ice then the heat required by it to change into liquid state will be its latent heat of fusion or melting.
It is a hidden heat which doesn't let the temperature to rise. This is because it is the heat that helps in breaking intermolecular bonds of a substance.
Thus, we can conclude that in latent heat of melting, latent heat is taken by the water molecule to change phase.
