The Combustion of 1 Mole of Octane, C₈H₁₈(l),To Produce Carbon $\Delta$

Multiple Choice

The combustion of 1 mole of octane, C₈H₁₈(l) ,To produce carbon dioxide and liquid water has $\Delta$ H_r = -5471 kJ.mol^-1 at 298 K.What is the change in internal energy for this reaction?

A) -5460 kJ.mol^-1
B) -5482 kJ.mol^-1
C) -5449 kJ.mol^-1
D) -5471 kJ.mol^-1
E) -5493 kJ.mol^-1