Given the Following Data, Calculate the Heat of Reaction (Combustion)

Multiple Choice

Given the following data, calculate the heat of reaction (combustion) for one mole of butane, C₄H₁₀. Report your result in kJ/mol.
Standard heats of formation (kJ/mol) :
H₂O(g) : -241.82
CO₂(g) : -393.5
Butane: -147.6
Formula weight of butane: 58.12 g/mol
L/mole of a gas at STP: 22.4L

A) -5272
B) 1831
C) -2636
D) -1831
E) none of the above