1. If the specific latent heat of ice is 340 000 J/kg and the specific latent heat of steam is
2 300 000 J/kg, calculate
a) the energy needed to melt 2 kg of ice at 0 °C
b) the energy needed to melt 500 g of ice at
0°C
c) the energy needed to boil 3 kg of water at
100 °C
d) the energy needed to boil 100 g of water at
100 °C.