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The rate of flow in stream with 20% CH4 and 80% H2O is 5 mole/hr, the contained was initially filled with 3 mole of H2O, what will be the percentage of CH4 in product stream?

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The rate of flow in stream with 20% CH4 and 80% H2O is 5 mole/hr, the contained was initially filled with 3 mole of H2O, what will be the percentage of CH4 in product stream?

(a) 5

(b) 12.5

(c) 25

(d) 37.5

I had been asked this question during an online interview.

Enquiry is from Multiple Component Systems topic in portion Introduction to Material Balances of Basic Chemical Engineering

1 Answer

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Best answer
The correct answer is (b) 12.5

The best explanation: Percentage of CH4 = 1/(1 + 4 + 3)*100 = 12.5%.

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