How many kilojoules of heat are required to melt an ice cube having the dimensions 3.8 cm x 2.8 cm x 2.1 cm? The density of ice is 0.92 g/cm^3 (cubed). Refer to table:
SUBSTANCE MELTING POINT,degrees Celsius Change in Heat of Fusion kJ/mol
Mercury -38.9 2.30
Ethanol -114 5.01
Water 0.0 6.01
Benzene 5.5 9.87
Silver 960.2 11.95
Iron 1537 15.19
The amount of energy needed to melt ice is proportional to the latent heat of fusion.
E = mass * laten heat of fusion.
Here the melting process is to melt ...
It shows how to calculate the heat required to melt an ice cube. The solution is detailed and has a '5/5' rating.