Question

Which of the following given fuels can be considered as the most efficient fuel based on the calorific value?

• A. Hydrogen having calorific value 150000 kJ/kg
• B. CNG having calorific value 50000 kJ/kg
• C. Petrol having calorific value 45000 kJ/kg
• D. Methane having calorific value 50000 kJ/kg

Answer 1

The correct option is A

Hydrogen having calorific value 150000 kJ/kg

The amount of heat liberated by the complete combustion of 1 kg of fuel is its calorific value. It is expressed in kilojoule per kilogram (kJ/kg). The most efficient fuel has a very high calorific value. Hence hydrogen having calorific value 150000 kJ/kg will be the most efficient fuel.