# chemistry

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2.) How much heat must be absorbed at 1357 K to melt a bar of copper (80 * 10 * 12 cm) assume d = 8.93 g/cm^3.

The normal boiling point is 1357 K, and heat of fusion is 13.05 KJ/mol.

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heatabsorved= masscopper*Heatfusion
remembering the mass= volume*density.

Watch your units. You will have to change either mass to moles, or heatfusion to kJ/gram.

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