What are fuels ?
What is the full form of CNG ?
What are combustible substances ?
What do you mean by an ignition temperature ?
Why does a phuljhari (sparking light) require some heating before it sparks ?
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The amount of heat energy produced on complete combustion of 1 kg of a fuel is called its calorific value. The calorific value of a fuel is expressed in a unit called kilojoule per kg (kJ/kg).