For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is
A. 1 kg
B. $$\frac{4}{3}$$ kg
C. $$\frac{8}{3}$$ kg
D. 2 kg
Answer: Option B
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You might think about changing the question. Instead of air, you can ask about Oxygen. C + 1/2O2 = CO, So O2 requirement will be 16/ 12 = 4/3. But air contains 23% oxygen by mass, therefore air requirement will be different.
Ansuman Sen Sharma
India Boiler dot Com