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Q.

In a mixture of N2 and O2 gases, the mole fraction of N2 is found to be 0.700. The total pressure of the mixture is 1.42 atm. What is the partial pressure of O2 in the mixture?

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a

0.211 atm

b

0.493 atm

c

0.426 atm

d

0.994 atm

answer is B.

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Detailed Solution

Here, we have;

XO2=0.3;0.3×1.42=PO2

⇒PO2=0.426atm

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