How much heat will be released during the complete combustion of 20 g of hydrogen?

univerkov | February 19, 2021 | education

Initial data: m (mass of completely burnt hydrogen) = 20 g (0.02 kg).

Reference data: q (specific heat of combustion of hydrogen) = 12 * 10 ^ 7 J / kg.

The amount of heat released due to the complete combustion of hydrogen is calculated by the formula: Q = q * m.

Calculation: Q = 12 * 10 ^ 7 * 0.02 = 0.24 * 10 ^ 7 J (2.4 MJ).

Answer: With the complete combustion of 20 grams of hydrogen, 2.4 MJ of heat will be released.

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