Question

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

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

Answer 1

The correct option is D

Coke

Explanation of the correct option

D:coke

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 $ki\log rame$, or $KJ/Kg$, is the unit of calorific value.
3. coke has a calorific value of $30750$.

Explanation of the incorrect options

A: Petrol

1. petrol - calorific value is $47000$.

B:kerosene

1. kerosene - calorific value is $46250$

C:Diesel

1. Diesel - calorific value is $45000$

Hence, the correct answer is option D.