During the complete combustion of 5 kg of fuel, 6 x 10 ^ 8 J of heat was released.

During the complete combustion of 5 kg of fuel, 6 x 10 ^ 8 J of heat was released. Determine the specific heat of combustion of the fuel. What is this fuel?

Given:

m = 5 kilograms is the mass of some fuel;

Q = 6 * 10 ^ 8 Joules – the amount of heat released during the complete combustion of this fuel.

It is required to determine q (Joule / kilogram) – the specific heat of combustion of the fuel, as well as its type.

To determine the specific heat of combustion of a fuel, you must use the following formula:

Q = q * m, from here we find that:

q = Q / m = 6 * 10 ^ 8/5 = 1.2 * 10 ^ 8 = 120 MJ / kg.

From the table we find that this value of the specific heat of combustion corresponds to hydrogen.

Answer: specific heat of combustion of fuel per 120 MJ / kg (fuel type – hydrogen).