Chemical Engineering - Fuels and Combustion - Discussion

23. 

One kg of carbon for theoretically complete combustion requires __________ kg of air.

[A]. 11.5
[B]. 0.5
[C]. 23
[D]. 12

Answer: Option A

Explanation:

No answer description available for this question.

Yayendra Singh said: (Jan 23, 2019)  
C-12 + O2(32) ---------> CO2.

Required O2 for 1 kg of C=32/12 = 2.66.
And air=req O2/.21 = 2.66/.21 = 12.69 Kg.

Robin said: (Mar 19, 2019)  
Here by weight 1kg of air contain 23% of oxygen.

So( 1/0.23) * 2.66 = 11.5kg.

Yaduvanshi said: (Oct 11, 2020)  
@Robin.

You are absolutely right. Thanks.

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