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How do I answer a latent heat of fusion problem with different temperatures?
How much heat is needed to transform a 60kg block of ice at -10 degrees celsius to a puddle of water at 90 degrees celsius. Latent heat of fusion is 3.3x10^5 j/kg
1 Answer
- Born YesterdayLv 79 years agoFavorite Answer
First you need the specific heat of ice to find the heat required to bring 60kg from -10C to 0
Then add the heat need to melt 60 kg at zero.
Finally, add the heat needed to raise 60kg from 0C to 90C.
Cp ice @ -10 = 2.110 kJ/kgK
Heat of Fusion = 330 kJ/kg
Cp water = 4.181 kJ/ kgK
(2.110kj/kgK × 10K × 60kg) + (330kJ/kg × 60kg) + (4.181kJ/kgK × 60kg × 90K) = Total heat
