Physics
Latent Heat
Calculate heat required for phase change.
Q = mL
Formula Explanation
Latent heat is the heat absorbed or released during change of state at constant temperature.
Variables Explained
m = mass; L = latent heat.
Solved Example
Find heat to melt 2 kg ice (L = 336000 J/kg).
Q = 2 × 336000 = 672000 J.