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_________________? | MCQ Hive

CHEMICAL ENGINEERING

Q 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_________________?

A A. 1.72
B B. 0.58
C C. 0.5
D D. 0.2

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