Which of the following fuel gases has the highest calorific value ?
Correct answer: A. Liquefied petroleum gas (LPG)
- A. Liquefied petroleum gas (LPG)
- B. Coal bed methane (CBM)
- C. Natural gas
- D. Sewage gas
Explanation
LPG is rich in propane and butane, which have higher heating values per unit volume than the mainly methane-based fuel gases listed. It therefore has the highest calorific value among these options.
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