15 kg of dry firewood was burned in the fire. How much warmth did the bodies around the fire receive?

The amount of heat that will be released during the complete combustion of dry firewood is calculated using the formula:
Q = q * m, where Q is the released amount of heat, q is the specific heat of combustion of dry wood (we take the specific heat of combustion for dry wood q = 1 * 10 ^ 7 J / kg), m is the mass of dry wood (m = 15 kg ).
Let’s calculate the amount of heat received by the bodies around the fire:
Q = q * m = 1 * 10 ^ 7 * 15 = 15 * 10 ^ 7 J = 150 MJ.
Answer: The bodies around the fire received 150 MJ of heat.