If a Lighter Contains 4

question 19

Multiple Choice

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

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