Calorific value is the energy contained in a fuel, determined by measuring the heat produced by the complete combustion of a quantity. Which among the following do you think will have the highest calorific value?

LPG

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Petrol

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Kerosene

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Biogas

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Solution

The correct option is A
LPG

Out of all these fuels, LPG has the highest calorific value because all the gaseous fuels have very high calorific values
Calorific values of the given fuels are:
LPG-55000(KJ/Kg)
Petrol-45000(KJ/Kg)
Kerosene-45000(KJ/Kg)
Biogas-35000-40000(KJ/Kg)

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