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Latent heat is thermal energy absorbed or released during phase changes without temperature change. It's crucial in heating systems, refrigeration, and water cycles.
Formel
The calculator applies Q = m × L for melting, vaporization, or sublimation
- Q
- m × L for melting — m × L for melting
- L
- L value — Variable used in the calculation
Trinn-for-trinn guide
- 1Enter the mass of substance and its latent heat value
- 2The calculator applies Q = m × L for melting, vaporization, or sublimation
- 3Results show total thermal energy transferred
Løste eksempler
Inndata
m = 1 kg water, L_vap = 2,260 kJ/kg
Resultat
Q = 2,260 kJ
Energy to boil 1 kg water
Vanlige feil å unngå
- ✕Confusing latent heat with specific heat capacity
- ✕Using sensible heat calculations for phase changes
Ofte stilte spørsmål
Why doesn't temperature change during boiling?
Energy goes into breaking molecular bonds to transition from liquid to gas, not increasing molecular motion.
Is latent heat the same for all substances?
No, different substances have different latent heat values depending on molecular structure and intermolecular forces.
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