# Which of the following gases has the highest calorific value?

By BYJU'S Exam Prep

Updated on: September 25th, 2023

(a) Hydrogen

(b) LPG

(c) Natural gas

(d) Methane

The gas that has the highest calorific value is Hydrogen. Calorific value, which is measured by the complete burning of a predetermined quantity at constant pressure and under typical circumstances, is the amount of heat energy present in food or fuel.

### Gases having the Highest Calorific Value

• Additionally known as calorific power.
• KJ/Kg is the unit of calorific value.
• The calorific value of anything directly relates to how effective it is.

Calorific values of different fuels

 Fuel Calorific Value (kJ/kg) Biogas 35000-40000 Hydrogen 150000 Coal 25000-30000 LPG 55000 Methane 50000 CNG 50000 Wood 17000-22000 Cow dung cake 6000-8000

Summary:

## Which of the following gases has the highest calorific value? (a) Hydrogen (b) LPG (c) Natural gas (d) Methane

Hydrogen has the highest calorific value. We can measure it by the complete burning of the element at constant pressure. Biogas has the highest calorific value that ranges between 35000 and 40000.

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