Calculadora de Calor de Fusión
Calcula la energía necesaria para fundir una sustancia usando Q = mLf. Ingresa masa y calor latente de fusión para obtener la energía requerida.
kg
J/kg
Heat Energy Required
334,000 J
Heat Energy (kJ)334.00 kJ
Heat Energy Required vs Mass
Fórmula
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.
Ejemplo Resuelto
Melting 1 kg of ice at 0°C.
- 01Q = m * Lf
- 02Q = 1 * 334000
- 03Q = 334,000 J = 334 kJ
Preguntas Frecuentes
Does temperature change during melting?
No. During a phase change, all added energy goes into breaking intermolecular bonds, not raising temperature.
What is the heat of fusion for water?
334 kJ/kg (334,000 J/kg or about 80 cal/g). This is why ice is so effective at cooling drinks.
Is freezing the reverse of melting?
Yes. The same amount of energy released during freezing equals the energy absorbed during melting.
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