A) 0.33
B) 0.25
C) 0.52
D) 0.2
Correct Answer: D
Solution :
Relationship between mole fraction of a component in the vapour phase and total vapour pressure of an ideal solution. \[{{y}_{A}}=\frac{{{P}_{A}}}{{{P}_{total}}}=\frac{{{x}_{A}}.P_{A}^{0}}{{{x}_{A}}.P_{A}^{0}+{{x}_{B}}.P_{B}^{0}}\] \[=\frac{1\times 1}{1\times 1+2\times 2}=\frac{1}{1+4}=\frac{1}{5}=0.2\]You need to login to perform this action.
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