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?
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.
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