How much heat must be added to 4.55 kg of copper to change it from a solid at 1358 k to a liquid at 1358 k? latent heat of fusion for copper is lf=20.7×104j/kg.

H=9.42 X 10^5 J

Explanation:

Heat required H = Mass of copper x latent heat of fusion of copper

H=4.55 x 20.7×104

H=941850

H=9.42 X 10^5 J

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