Oxygen required for theoretically complete combustion of 1 Nm3 methane is ______________ Nm3?
Correct answer: A. 2
- A. 2
- B. 4
- C. 6
- D. 1
Explanation
The combustion equation is CH₄ + 2O₂ → CO₂ + 2H₂O, so one volume of methane requires two volumes of oxygen at the same conditions. Hence the theoretical oxygen requirement is 2 Nm³.
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