It is known that with the complete combustion of 7 kg of peat, 9.8 * 10 ^ 7J of energy were released.
| November 19, 2020 | education
It is known that with the complete combustion of 7 kg of peat, 9.8 * 10 ^ 7J of energy were released. What is the specific heat of combustion of peat?
The amount of heat that will be released during the complete combustion of peat:
Q = q * m, where Q is the released heat (Q = 9.8 * 10 ^ 7 J), q is the specific heat of combustion of peat (J / kg), m is the mass of burnt peat (m = 7 kg).
Let us express and calculate the specific heat of combustion of peat:
q = Q / m = 9.8 * 10 ^ 7/7 = 1.4 * 10 ^ 7 J / kg = 14 MJ / kg.
Answer: The specific heat of combustion of peat is 14 MJ / kg.
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