When burning 10kg of firewood, 1.0 * 10 ^ 8J of heat was released. Determine the specific heat of combustion of firewood?
| May 30, 2021 | education
We calculate the specific heat of combustion of firewood using the following formula:
Q = q * m, where, according to the condition of the problem, Q (released heat) = 1 * 10 ^ 8 J, m (mass of burned wood) = 10 kg.
q = Q / m.
Let’s do the calculation:
q = 1 * 10 ^ 8/10 = 1 * 10 ^ 7 J / kg.
The result obtained corresponds to the table value for dry wood (q = 1 * 10 ^ 7 J / kg).
Answer: The specific heat of combustion of firewood was 1 * 10 ^ 7 J / kg.
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