Question

The specific latent heat of fusion of ice is 336000 J kg⁻¹. What do you understand from the statement?

Answer 1

1. To melt 1 kg of ice at 0°C completely into water at 0°C, 336000 J of heat energy is required without any rise in temperature.
2. The same amount of heat energy (336000 J) is released when 1 kg of water at 0°C freezes to form ice at 0°C.

Thus, the specific latent heat of fusion of ice is 336000 J kg⁻¹.