The calorific values of petrol and CNG are 45000 kJ/kg and 50000 kJ/kg respectively. If you have vehicle which can run on petrol as well as CNG, which fuel will you prefer and why?

AcademicChemistryNCERTClass 8

We prefer CNG (Compressed Natural Gas) because
  • the calorific value of CNG is higher than that of petrol.
  • CNG also produces a large amount of heat energy than petrol.
  • It produces the least air pollutants, hence, it is cleaner.
  • It is more economical.
Updated on 10-Oct-2022 13:27:05