Combustion of 7 $\Delta$ H for the Following Reaction?
C₆H₆(l)+
O₂(g)

Combustion of 7.21 g of liquid benzene (C₆H₆) causes a temperature rise of 50.3°C in a constant-pressure calorimeter that has a heat capacity of 5.99 kJ/°C.What is $\Delta$ H for the following reaction?
C₆H₆(l) +
O₂(g) $\to$ 6CO₂(g) + 3H₂O(l)

A) -302 kJ/mol-rxn
B) 41.8 kJ/mol-rxn
C) -41.8 kJ/mol-rxn
D) -3.27 $\times$ 10³ kJ/mol-rxn
E) 302 kJ/mol-rxn