Latent heat:
The heat required to convert a solid into a liquid or vapour, or a liquid into a vapour, without change of temperature.
In other words Latent heat is energy released or absorbed, by a body during a constant-temperature process, for example a phase change of water from liquid to gas. This is written as:
Sensible heat = (mass of the body) * (specific latent heat)
The equation is
Q= m L
We have:
Q=Latent heat
m= Mass of the body
L= Specific latent heat coefficient of the material
