GATE 2023 CH – Question 32
Burning of methane in a combustor yields carbon monoxide, carbon dioxide, and water vapor. Methane is fed to the combustor at 100 mol hr$^{-1}$, of which 50% reacts. The theoretical oxygen requirement (in mol hr$^{-1}$) is ________ (rounded off to one decimal place).
Practise this question in The GATE Grind →
Show answer and explanation
Correct answer: 199.00 to 201.00
Explanation
The theoretical oxygen is the amount needed to burn all the methane fed completely to CO₂ and H₂O, whatever the actual conversion or the products: $CH_4 + 2O_2 \to CO_2 + 2H_2O$. So $2 \times 100 = 200.0$ mol/h.