100 KPa of water vapor at 27^oC is saturated with air in a system, what is the mole fraction of air?(a) 0.230(b) 0.306(c) 0.425(d) 0.503I had been asked this question by my college professor while I was bunking the class.Question is taken from Saturation in section Real Gases: Equations of State, Single Component Two Phase Systems, Saturation & Condensation of Basic Chemical Engineering

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

1.	100 KPa of water vapor at 27^oC is saturated with air in a system, what is the mole fraction of air?(a) 0.230(b) 0.306(c) 0.425(d) 0.503I had been asked this question by my college professor while I was bunking the class.Question is taken from Saturation in section Real Gases: Equations of State, Single Component Two Phase Systems, Saturation & Condensation of Basic Chemical Engineering
Answer» Right ANSWER is (d) 0.503 For EXPLANATION: FRACTION of air = 101.3/(100 + 101.3) = 0.503.

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