Two components A and B have their pure vapor pressures in the ratio 1 – McqOptions

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1.	Two components A and B have their pure vapor pressures in the ratio 1 ∶ 4 and respective mole fractions in solution in ratio 1 ∶ 2. What is the mole fraction of component B in vapor phase?
A.	0.8889
B.	0.1250
C.	0.8000
D.	0.2000
Answer» B.

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