In the process of complete combustion of kerosene, 92 kJ of heat was released. What is the mass of the burned kerosene?

univerkov | January 10, 2021 | education

Initial data: Q (heat released during the combustion of kerosene) = 92 kJ = 92 * 10 ^ 3 J.
Constants: q (specific heat of combustion of kerosene) = 46 * 10 ^ 6 J / kg.
We express the mass of burnt kerosene from the following formula: Q = q * m and m = Q / q.
Let’s calculate: m = 92 * 10 ^ 3 / (46 * 10 ^ 6) = 0.002 kg or 2 g.
Answer: The mass of burned kerosene is 2 grams.

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