Physics for IGCSE & O level - Thermal Effects (Section 2 - No. 5)
If 1 kg of water at 100°C turns to steam at 100°C. What energy is used to do so (Latent Heat of Vaporisation of Water is 2,260,000 J/kg)?
2,260,000 J
1,130,000 J
4,520,000 J
0 J
解释
Energy Transferred = mass x specific latent heat. Energy = 1kg * 2,260,000 J = 2,260,000 J