With the complete combustion of some fuel with a mass of 600 g, an amount of heat of 16.2 MJ is released.

univerkov | July 5, 2021 | education

With the complete combustion of some fuel with a mass of 600 g, an amount of heat of 16.2 MJ is released. What is the specific calorific value of the fuel? What kind of fuel can it be?

Given: m (mass of some fuel) = 600 g (in SI m = 0.6 kg); Q (released thermal energy) = 16.2 MJ (16.2 * 10 ^ 6 J).

To determine the type of some fuel, apply the formula: Q = qx * m and qx = Q / m.

Let’s calculate: qx = 16.2 * 10 ^ 6 / 0.6 = 27 * 10 ^ 6 J / kg = 27 MJ / kg.

Answer: Some fuels can be alcohol or coal.

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