# Latent Heat

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Latent heat ( $$L$$ ) is the energy absorbed or released by a substance during a constant temperature or phase change from a solid to liquid, liquid to gas or vise versa.

### Latent Heat Formula

$$\large{ L = \frac{Q}{m} }$$

Where:

$$\large{ L }$$  = latent heat of a substance

$$\large{ m }$$ = mass of the substance

$$\large{ Q }$$ = amount of energy transferred for the phase change

Solve for:

$$\large{ Q = mL }$$

Tags: Equations for Heat