The latent heat of vaporization of a substance is always ______________.
Latent heat of vaporization is the energy needed to change the substance from liquid state to gaseous state without change in its temperature.
The latent heat of fusion is the heat energy needed to change the substance from solid state to liquid state without change in its temperature.
The latent heat of vaporization is always greater than latent heat of fusion. This is because in liquid to vapour phase change, there is a large increase in volume. Hence, more heat is required as compared to solid to liquid phase change.