Explain why latent heat of vaporisation is much larger than latent heat of fusion.
Share with your friends
Call
1. The energy required to completely separate the molecules or atoms in liquids is greater than the energy needed to break the rigidity (rigid bonds between the molecules or atoms) in solids.
2. Also, when the liquid is converted into vapour, it expands. Work has to be done against the surrounding atmosphere to allow this expansion.
Hence, latent heat of vaporisation is larger than latent heat of fusion.