Chemical Engineering - Stoichiometry - Discussion

Discussion Forum : Stoichiometry - Section 4 (Q.No. 48)
48.
Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is
1.72
0.58
0.5
0.2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Jeetendra said:   7 years ago
Option A is the correct answer.

Deepak Singh Bisht said:   7 years ago
C Will be the correct answer.

Deepak Singh Bisht said:   7 years ago
C Will be the correct answer.

Jeetendra Kushwaha said:   6 years ago
Let 100 mols of air = 21 moles of o2 and 79 moles of others
If we add in air 58 moles of O2 then O2 in the mixture is also 79.
So the ratio of moles of air to used O2 is 100/58 = 1.724


Option B is correct when the asked ratio is pour oxygen to the air(58/100 = 0.58).
(2)

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