How much energy is released during the complete combustion of 4 tons of coal?

univerkov | December 3, 2020 | education

Let’s translate 4t into kilograms, which means you need to multiply tons by 1000
m = 4t * 1000 = 4000kg
The specific heat of combustion of coal is constant, this is a public value
q = 2.7 * 10 ^ -7
Q = my
Q = 4000 * 2.7 * 10 ^ -7 = 108000000000 = 108GJ
GJ is a gigajoule
Answer: 108GJ

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