Thursday
October 23, 2014

Homework Help: chemisty

Posted by bob on Wednesday, January 11, 2012 at 4:41pm.

The molar heat capacity of C6H6(ℓ) is 136 J/mol ◦C and of C6H6(g) is 81.6 J/mol ◦C.
The molar heat of fusion for benzene is 9.92 kJ/mol and its molar heat of vaporization is
30.8 kJ/mol. The melting point of benzene is 5.5 ◦C, its boiling point is 80.1 ◦C, and its
molecular weight 78.0 g/mol. How much heat would be required to convert 624 g of solid
benzene (C6H6(s)) at 5.5 ◦C into benzene vapor (C6H6(g)) at 100.0 ◦C?

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