Multiple choice

Which one of the following has the highest fuel value?

  1. Hydrogen

  2. Charcoal

  3. Natural gas

  4. Gasoline

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fuel value (calorific value) refers to the heat released per unit mass. Gasoline has a higher energy density compared to charcoal or natural gas in many practical contexts.