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A gas mixture contains 30% CO2, 40% O2, 30% N2, if the partial pressure of CO2 is 6 Pa, what is the total pressure of gas mixture?

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A gas mixture contains 30% CO2, 40% O2, 30% N2, if the partial pressure of CO2 is 6 Pa, what is the total pressure of gas mixture?

(a) 6 Pa

(b) 10 Pa

(c) 20 Pa

(d) 60 Pa

The question was asked by my college director while I was bunking the class.

I need to ask this question from Ideal Gas Mixtures and Partial Pressure in portion Recycle, Bypass, Purge, Ideal Gases and Real Gases of Basic Chemical Engineering

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The correct choice is (c) 20 Pa

Easy explanation: 0.3*P = 6, => P = 20 Pa.

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