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How much heat is required to solidify 2.0 kg of liquid copper?

How much heat is required to solidify 2.0 kg of liquid copper?
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How much heat is required to solidify 2.0 kg of liquid copper?

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User Maher Aldous
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1 Answer

5 votes
The latent heat of fusion of copper is
L_f = 209 kJ/kg, so the amount of heat needed to solidify the copper is this value times the mass of the liquid copper:

Q=m L_f = (2.0 kg)(209 kJ/kg)=418 kJ
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User Ccl
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