The normal melting point of copper is 1357 K, and fus H of Cu is 13.05

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The normal melting point of copper is 1357 K, and Δ_fusH of Cu is 13.05 kJ mol^-1.

(a) How much heat, in kilojoules, is evolved when a 3.78 kg sample of molten Cu freezes?

(b) How much heat, in kilojoules, must be absorbed at 1357 K to melt a bar of copper that is 15 cm x 12 cm? (Assume d = 8.92 g/cm³ for Cu.)

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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Question Posted: Nov 17, 2023 08:40 AM

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The normal melting point of copper is 1357 K, and fus H of Cu is 13.05

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a q m fusH where q is the heat evolved m is the mass of the sample and fusH is the molar enthalpy of ...View the full answer

General Chemistry Principles And Modern Applications

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