How much heat will be released when burning birch firewood weighing 0.32 tons?

univerkov | July 30, 2021 | education

Problem data: m (mass of burnt birch firewood) = 0.32 t (in SI m = 320 kg).

Constants: according to the condition qb (specific heat of combustion of birch wood) = 1.3 * 10 ^ 7 J / kg.

We calculate the heat that birch firewood should emit during combustion by the formula: Q = qb * m.

Calculation: Q = 1.3 * 10 ^ 7 * 320 = 4.16 * 10 ^ 9 J = 4.16 GJ.

Answer: When burning 0.32 tons of birch firewood, 4.16 GJ of heat should have been released.

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