Homework Help: chemistry

Posted by Anonymous on Sunday, February 20, 2011 at 8:18pm.

The change in internal energy for the combustion of 1.0 mol of octane at a pressure of 1.0 atm is 5084.3kJ. if the change is enthalpy is 5074.1kJ, how much work is done during the combustion?

chemistry - Liz, Thursday, March 24, 2011 at 8:31am
Internal energy = heat + work
Work = Internal energy - heat

heat = -5074.1kJ (combustion is always exothermic, so negative)

work = -5084.3 kJ - (-5074.1) kJ =

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