(Answered) Butane is used as the fuel in pocket cigarette lighters it

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Butane is used as the fuel in pocket cigarette lighters. It is a liquid when stored under pressure in the lighter, but vaporises when the valve is opened. Combustion of butane is represented by the equation:

2C₄H₁₀(g) + 13O₂(g) ® 8CO₂(g) + 10H₂O(l); DH = -5772 kJ mol^-1

How much energy is evolved when 10.0 g of butane burns completely?

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