Question
A refrigerator converts 100g of water at 20oC to ice at −10oC in 35 minutes. Calculate the average rate of heat extraction in terms of watts.
Given:
Specific heat capacity of ice =2.1Jg−1oC−1
Specific heat capacity of water =4.2Jg−1oC−1
Specific Latent heat of fusion of ice 336J g−1