With the complete combustion of peat, 132 kJ of tepa was released, which mass of peat was burned.

univerkov | August 28, 2021 | education

To calculate the mass of burnt peat, we apply the formula: Q = qt * m, whence m = Q / qt.

Constants and variables: Q – released heat (Q = 132 kJ = 132 * 10 ^ 3 J); qt is the specific heat of combustion of peat (qt = 1.4 * 10 ^ 7 J / kg).

Let’s make a calculation: m = Q / qt = 132 * 10 ^ 3 / (1.4 * 10 ^ 7) = 0.00943 kg or 9.43 g.

Answer: 9.43 grams of peat burned out.

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