Calorific value| Burning of fuels

Define calorific value of a fuel.

What is calorific value of a fuel?

Define the calorific value of a fuel.

Arrange the following fuels in the order of increasing calorific values (keeping the fuel with lowest calorific value first) : LPG, Coal, Alcohol, Dung cakes, Diesel

Arrange the following fuels in the order of decreasing calorific values (keeping the fuel with highest calorific value first) : Biogas, Kerosene, Wood, Petrol, Hydrogen gas, Methane

Calorific values of fuels are generally expressed in which of the following units ?

What is meant by 'Calorific value of a fuel is 8000 kJ k g^(-1) ?