Asked by Patrick

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

14 years ago

Answered by Anonymous

a) negative

b) 1.00 mol C8H18 x 114.26g C8H18/1mol x 239.5 kcal/5.00g C8H18 = 5.47x10^3 kcal or 5473.054 kcal

11 years ago

Answered by Anonymous

yeah

8 years ago

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