Calorific value of gobar gas (containing CH4 = 60% , H2 = 10% ; CO2 = 30%) may be about ______________ Kcal/Nm3?
Correct answer: C. 5,400
- A. 1,800
- B. 3,200
- C. 5,400
- D. 10,200
Explanation
Only methane and hydrogen contribute appreciably: 0.60(about 8560) + 0.10(about 2570) gives roughly 5400 kcal/Nm³. Carbon dioxide is inert and contributes no calorific value.
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