How much natural gas does it take to burn to get 4.4 * 10 ^ 9 Joules of energy?

univerkov | January 15, 2021 | education

Initial data: Q (the amount of energy received due to the combustion of natural gas) = 4.4 * 10 ^ 9 J.
Reference values: q (specific heat of combustion of natural gas) = 44 * 10 ^ 6 J / kg.
The required mass of consumed natural gas is determined from the formula: Q = q * m, whence m = Q / q.
Let’s perform the calculation: m = 4.4 * 10 ^ 9/44 * 10 ^ 6 = 4400/44 = 100 kg.
Answer: It will be necessary to burn 100 kg of natural gas.

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