Question

Question 11
In an experiment, 4.5 kg of a fuel was completely burnt. The heat produced was measured to be 180,000 kJ. Calculate the calorific value of the fuel.

Answer 1

The calorific value of fuel is the amountofheat produced by the complete combustion of 1 kg of fuel.
Now,
Heat produced by 4.5 kg of fuel = 180000 kJ Therefore, heat produced by 1 kg of fuel = $\frac{180000}{4.5}=40000\frac{kJ}{kg}$
Hence, the calorific value of the fuel is $40,000\frac{kJ}{kg}.$