Arrange the following fuels in the order of decreasing calorific values (keeping the fuel with highest calorific value first):
Biogas, Kerosene, Wood, Petrol, Hydrogen gas, Methane

Academic Physics NCERT Class 10

The fuels in the decreasing order of calorific values (with highest calorific value first) are as follows:

Hydrogen gas > Methane > Petrol > Kerosene > Biogas > Wood

Extra information for reference only

The calorific values of the given fuels are as follows:

1. Hydrogen gas - 150 kJ/g

2. Methane - 55 kJ/g

3. Petrol - 50 kJ/g

4. Kerosene - 48 kJ/g

5. Biogas - 40 kJ/g

6. Wood - 17 kJ/g

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Updated on: 10-Oct-2022

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