Thermodynamics
Latent Heat
Heat required for phase change at constant temperature.
Variables
QJ
Heat
Heat for phase change
mkg
Mass
Mass of substance
LJ/kg
Latent heat
Heat per unit mass
Derivation
Q = mL where L is latent heat of fusion or vaporization.
Your notes
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Common questions
What is the Latent Heat formula?
Latent Heat is written Q = mL. Heat required for phase change at constant temperature. It belongs to Thermodynamics, under Heat & Temperature.
What are the units in Q = mL?
In SI units, Q is heat, measured in kg·m²/s²; m is mass, measured in kg; L is latent heat, measured in m²/s².
How is the Latent Heat formula derived?
Q = mL where L is latent heat of fusion or vaporization. The result is Q = mL.