Which of the following fuels has the highest calorific value ?
Kerosene, Wood, Hydrogen, Cow-dung cakes, LPG
Among the following fuels, which has the least calorific value:
CNG, Petrol, Cow Dung Cake, Wood.
What do you understand by calorific value? Arrange the following fuels in their ascending order of calorific value : hydrogen, methane, cow dung cake, kerosene, wood. [3 MARKS]