Question

which better fuel coal or petrol

Answer 1

Answer:

Petrol is better than coal fuel

Answer 2

Answer:

Coal

Explanation:

The amount of heat energy produced on complete combustion of 1 kg of a fuel is called its calorific value.

...

Calorific Values of Different Fuels.

Fuel Calorific Value (kJ/kg)

Coal 25000-33000

Petrol 45000

Kerosene 45000

Diesel 45000