Isooctane Is a Good Model Compound for Gasoline

Multiple Choice

Isooctane is a good model compound for gasoline. When 1.14 g of isooctane (114 g/mol) reacts with excess oxygen in a constant pressure calorimeter, the temperature of the calorimeter increases by 10.0^oC. The heat capacity of the calorimeter is 5.46 kJ/^oC. Determine the molar enthalpy of combustion of isooctane.

A) (5,460 kJ/mol)
B) (54.6 kJ/mol)
C) (5,460 kJ/mol)
D) (54.6 kJ/mol)
E) (5.46 kJ/mol)