Explanation

It is also called phase transformation hall, or latent heat for short. It refers to the heat absorbed or released by lmol substance when it changes from a phase to a phase under isothermal and isobaric conditions. This is one of the characteristics of the transformation between solid, liquid and gas phases and between different phases. The latent heat between solid and liquid is called fusion heat (or condensation heat), the latent heat between liquid and gas is called vaporization heat (or condensation heat), and the latent heat between solid and gas is called sublimation heat (or condensation heat).

Classification