Physics for IGCSE & O level - Thermal Effects (Section 7 - No. 46)
If 1000 J of energy are required to melt 0.5 kg of ice, what is the latent heat of fusion?
500 J/kg
2000 J/kg
5000 J/kg
0.5 J/kg
คำอธิบาย
Latent heat of fusion = energy / mass = 1000 J / 0.5 kg = 2000 J/kg