Two substance A and B forming ideal solutions have PAo : PBo = 1 : 2 and mole fractions in - Chemistry - Solutions

Question

Two substance A and B forming ideal solutions have PA
o : PB o = 1 : 2 and mole
fractions in liquid phase as XA : XB = 1 : 2,
then mole fraction of A in vapour phase will be
a) 0 33
b) 0 25
c) 0 52
d) 0 2
Answer is d please explain how

Yasodharan · Accepted Answer

Dear Student,

The computation are expressed below,

PAo=1,  PBo=2XA=1,  XB=2Ptotal =PA+PB=PAoXA+PBoXB= 1(1)+2(2) =5by Daltons law,YA=PAoPtotal=15=0
2Hence answer is Option (D) 0 2
Regards

Two substance A and B forming ideal solutions have PA o : PB o = 1 : 2 and mole fractions in liquid phase as XA : XB = 1 : 2, then mole fraction of A in vapour phase will be a) 0.33 b) 0.25 c) 0.52 d) 0.2 Answer is d please explain how

Two substance A and B forming ideal solutions have P_A ^o : P_B ^o = 1 : 2 and mole fractions in liquid phase as X_A : X_B = 1 : 2, then mole fraction of A in vapour phase will be
a) 0.33
b) 0.25
c) 0.52
d) 0.2
Answer is d please explain how