Which of the following gaseous fuels is likely to have the highest gross calorific value ?
Correct answer: B. LPG
- A. Sewage gas
- B. LPG
- C. Producer gas
- D. Natural gas
Explanation
LPG contains energy-rich hydrocarbons such as propane and butane, giving it a much higher calorific value per normal cubic metre than methane-rich natural gas or the dilute gases. Producer gas has especially low calorific value because it contains substantial nitrogen.
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