Listen NCERT Audio Books to boost your productivity and retention power by 2X.
Arrange the following fuels in order of increasing calorific values (keeping the fuels with lowest calorific value first):
LPG, Coal, Alcohol, Dung cakes, Diesel
Dung cakes < Coal < Alcohol < Diesel < LPG
Dung cakes have the lowest calorific value where as LPG has the highest calorific value among them)
The calorific values of three fuels A, B and C are 33 KJ/g, 150 KJ/g, respectively. A is solid, B is liquid and C is a gas at room temperature. On combustion, both A and B produces carbon dioxide while C explodes forming steam. B and C leave no residue after combustion while A leaves behind some solid residue. Which one of the three fuels is the most ideal? Give two reasons to support your answer.