Chemical Engineering - Fuels and Combustion - Discussion

Discussion Forum : Fuels and Combustion - Section 2 (Q.No. 23)
23.
One kg of carbon for theoretically complete combustion requires __________ kg of air.
11.5
0.5
23
12
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Yaduvanshi said:   5 years ago
@Robin.

You are absolutely right. Thanks.

Robin said:   6 years ago
Here by weight 1kg of air contain 23% of oxygen.

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

Yayendra singh said:   7 years ago
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.

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