If a Lighter Contains 4

If a lighter contains 4.0 mL of liquid butane (density of butane = 0.8 g\cm ³ ) , how much potential energy does the lighter contain according to the combustion of butane?
2 C ₄ H ₁₀ ( g ) + 13 O ₂ ( g ) → 8 CO ₂ ( g ) + 10 H ₂ O( l ) Δ H = − 5.75 × 10 ³ kJ

A) − 5 × 10²kJ
B) − 1.6 × 10 ² kJ
C) − 8 × 10²kJ
D) +4.8 × 10³kJ