What amount of heat will be released during the complete combustion of 200 kg of coal

What amount of heat will be released during the complete combustion of 200 kg of coal, if the specific heat of combustion of this fuel is 30 MJ / kg?

m = 200 kilograms is the mass of coal;

q = 30 MJ / kg = 30 * 10 ^ 6 J / kg – specific heat of combustion of a stone corner.

It is required to determine Q (Joule) – the amount of heat that will be released during the complete combustion of coal.

Q = m * q = 200 * 30 * 10 ^ 6 = 6000 * 10 ^ 6 = 6 * 10 ^ 9 Joules.

Answer: with the complete combustion of coal, thermal energy will be released, equal to 6 * 10 ^ 9 Joules.



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