Homework Help: Chemistry

Posted by Patrick on Monday, November 15, 2010 at 6:09pm.

During the combustion of 5.00 g of octane, C8H18, 239.5 kcal is released.

a) What is the sign of (delta)H for this reaction?

b) How much energy is released by the combustion of 1.00 mol of C8H18

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