Asked by Anushka

In an experiment 4.5kg of fuel was completely burnt. The heat produced was measured to be 180,000kg. What is the calorific value of the fuel?
Answered by Arora
I assume that the heat produced is 180,000 Joules and not kilograms, since Joules is the unit for energy

Calorific value = Heat energy Produced/Mass of fuel
= 180,000/4.5
= 40,000 J/kg