Calculate the energy consumption for melting 0.5 kg ice taken at a temperature of -15 * C.

First you need to heat the ice to a temperature of 0
Q = cm∆t = 2100 * 0.5 * 15 = 15750 J
Q = lambda * m = 330000 * 0.5 = 165000j
Q + Q = 182.5 kJ
Answer 182.5 kJ



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