Homework Help: chemistry

Posted by Andrew on Monday, February 15, 2010 at 9:11pm.

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.

chemistry - DrBob222, Monday, February 15, 2010 at 9:31pm
Answered below.
chemistry - bobpursley, Monday, February 15, 2010 at 9:32pm
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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