A) 0.33
B) 0.25
C) 0.52
D) 0.2
Correct Answer: D
Solution :
0.2 \[\operatorname{In} a solution if {{x}_{A}}^{o} = x~~, {{X}_{B}} = 2x\] \[\operatorname{and}\,\,it {{P}_{A}}^{o}=p, {{P}_{B}}^{o}=2p\] \[\therefore pA = x \times p\] \[\operatorname{pB}=2x\times 2p=4xp\] \[\therefore p=pA+pB\] \[= xp + 4xp = 5xp\] Mole fraction in vapour phase, \[{{\operatorname{y}}_{A}}=\frac{pA}{{{p}_{total}}}\] \[=\frac{xp}{5xp}=\frac{1}{5}=0.2\]You need to login to perform this action.
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