How much heat will be released during the combustion of 5 m3 of dry oak?

To estimate the amount of heat released during the combustion of a taken dry oak, we use the formula: Qx = qdd * m = qdd * ρsd * V, where qdd – beats. heat of combustion of oak wood (qdd = 19.9 MJ / kg = 19.9 * 10 ^ 6 J / kg); ρсд – density of dry oak (at W (humidity) = 10% ρсд = 670 kg / m3); V is the volume of dry oak (V = 5 m3).

Let’s perform the calculation: Qx = qдд * ρсд * V = 19.9 * 10 ^ 6 * 670 * 5 = 66665 * 10 ^ 6 J ≈ 66.7 GJ.

Answer: When dry oak is burned, 66.7 GJ of heat will be released.