Name the unit in which the calorific value of a fuel is expressed.

Solution:Calorific value:Part 1:Definition: Calorific value may refer to the amount of heat generated after the complete combustion of a unit volume of a substance. The amount of heat generated on complete combustion of 1 Kg of a fuel is known as its calorific value.Part 2:Unit:The calorific value of a fuel is expressed in unit- Kilojoule per kg(kJ/Kg) or J/g