A) 500 mmHg, 0.5, 0.5
B) 450 mmHg, 0.4, 0.6
C) 450 mmHg, 0.5, 0.5
D) 500 mmHg, 0.4, 0.6
Correct Answer: D
Solution :
\[{{P}_{total}}={{X}_{A}}.P_{A}^{0}+{{X}_{B}}.P_{B}^{0}=0.5\times 400+0.5\times 600\] \[=500mmHg\] Now, mole fraction of A in vapour, \[{{Y}_{A}}=\frac{{{P}_{A}}}{{{P}_{total}}}=\frac{0.5\times 400}{500}=0.4\] and mole fraction of B in vapour, \[{{Y}_{B}}=1-0.4=0.6\] Correct option :You need to login to perform this action.
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