Free Heat of Fusion Calculator
Calculate energy required to melt a substance using Q = m * Lf.
kg
J/kg
Heat Energy Required
334,000 J
Heat Energy (kJ)334.00 kJ
Heat Energy Required vs Mass
Heat of Fusion
The heat of fusion is the energy absorbed during melting at constant temperature.
Formula
Q = m * L_f
where L_f is the specific latent heat of fusion. For water/ice, L_f = 334,000 J/kg = 334 kJ/kg.
Example Calculation
Melting 1 kg of ice at 0°C.
- 01Q = m * Lf
- 02Q = 1 * 334000
- 03Q = 334,000 J = 334 kJ
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