Multiple choice general knowledge science & technology

Which fuel produce maximum heat per gram burnt?

  1. Hydrogen

  2. Carbon

  3. Helium

  4. Silicon
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A Correct answer
Explanation

Hydrogen has the highest calorific value (~150 MJ/kg) among common fuels, meaning it releases the most energy per gram during combustion. Carbon produces significantly less heat (~33 MJ/kg), while helium is a noble gas that does not burn, and silicon is not used as a fuel.

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