Using the Following Thermochemical Equation, Determine the Amount of Heat

Using the following thermochemical equation, determine the amount of heat produced per kg of CO₂ formed during the combustion of benzene (C₆H₆) . 2C₆H₆(l) + 15O₂(g) → 12CO₂(g) + 6H₂O(g) Δ_rH° = -6278 kJ

A) 1.43 × 10⁵ kJ (kg CO₂) ^-1
B) 2.30 × 10⁴ kJ (kg CO₂) ^-1
C) 4.34 × 10⁴ kJ (kg CO₂) ^-1
D) 1.19 × 10⁴ kJ (kg CO₂) ^-1
E) 8.40 × 10⁵ kJ (kg CO₂) ^-1