Question

Out of the following, which fuel has the greatest calorific value?

• A. Petrol
• B. Kerosene
• C. Biogas
• D. Coke

Answer 1

The correct option is A

Petrol

Explanation of the correct option

A:Petrol

1. The amount of heat energy present in food or fuel is calculated by full combustion of a defined quantity at constant pressure and under normal conditions.
2. Calorific power is another name for it. The kilojoule per $ki\log ram$, or $kJ/kg$, is the unit of calorific value.
3. Petrol has a calorific value of $47000$ $kJ/kg$ .(average)

Explanation of the incorrect option
B:kerosene

1. kerosene - calorific value is $46250$$kJ/kg$.

C:Biogas

1. Biogas - calorific value is $18900$$kJ/kg$.

D:coke

1. coke - calorific value is 30750 $kJ/kg$.

Hence, Correct Answer is option A