Multiple choice

Which of the following fuels has higher calorific value?

  1. dung

  2. methane

  3. coal

  4. wood
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Methane (CH4) has the highest calorific value among the options (~55 MJ/kg). Hydrogen has the highest of all fuels (~142 MJ/kg) but isn't listed. Coal and wood have much lower calorific values than gaseous fuels like methane. Dung cakes have the lowest calorific value among common fuels.

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