A vessel contains air and vapor H₂O, if the partial pressure of vapo – McqOptions

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1.	A vessel contains air and vapor H₂O, if the partial pressure of vapor H₂O is 4 atm and pressure of air is 1 atm, what is the fraction of vapor H₂O in vessel?
A.	0.25
B.	0.5
C.	0.75
D.	0.8
Answer» D. 0.8

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