# What unit is used to measure latent heat?

##### 1 Answer

Oct 8, 2015

#### Explanation:

Latent heat is the amount of energy required to change the phase of 1 kg of a material and hence the unit is Joules per Kilogram.

In particular, specific latent heat of fusion is the amount of heat required to change phase of 1 kg between solid and liquid.

Specific latent heat of vapourization is the energy required to change phase of 1kg between liquid and gas.