Question

calorific value of coal is 25000 to 33000 kilozone /kg and the calorific value of petrol is 45000 kilozone /kg . which one is better fuel and why?​

Answer 1

Answer:

petrol is better because it has higher calorific value than coal.

higher calorific value means it can produce more amount of heat in the same volume or amount of coal or petrol taken.

it is simply taken in concern that higher the calorific value more good is the fuel.