(a)[2]
State what is meant by specific latent heat.
(b(i))[2]
The heater is turned on, so the ice melts. The specific latent heat of fusion of ice is $3.3 \times 10^5\,\text{J kg}^{-1}$. Calculate the energy required to melt 5.0 g of ice.
(b(ii))[1]
Before the heater is turned on, thermal energy from the room makes some of the ice melt. Describe the way in which the ice receives thermal energy from the air.