Kostenloser Wärme of Fusion Rechner
Berechnen Sie energy needed to melt a substance. Kostenloser Q = m*Lf heat of fusion Rechner.
kg
J/kg
Heat Energy Required
334,000 J
Heat Energy (kJ)334.00 kJ
Heat Energy Required vs Mass
Formel
## 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.
Lösungsbeispiel
Melting 1 kg of ice at 0°C.
- 01Q = m * Lf
- 02Q = 1 * 334000
- 03Q = 334,000 J = 334 kJ
Häufig Gestellte Fragen
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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