10 KPa of water vapor at 27^oC is saturated with air in a system, what is the mole fraction of air?(a) 0.21(b) 0.46(c) 0.79(d) 0.91This question was posed to me during an interview for a job.I need to ask this question from Saturation in section Real Gases: Equations of State, Single Component Two Phase Systems, Saturation & Condensation of Basic Chemical Engineering

10 KPa of water vapor at 27^oC is saturated with air in a system, what

1.	10 KPa of water vapor at 27^oC is saturated with air in a system, what is the mole fraction of air?(a) 0.21(b) 0.46(c) 0.79(d) 0.91This question was posed to me during an interview for a job.I need to ask this question from Saturation in section Real Gases: Equations of State, Single Component Two Phase Systems, Saturation & Condensation of Basic Chemical Engineering
Answer» CORRECT CHOICE is (d) 0.91 Explanation: FRACTION of AIR = 101.3/(10 + 101.3) = 0.91.

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