| (\[{{x}_{M}}\] = Mole fraction of 'M' in solution ; |
| \[{{x}_{N}}\] = Mole fraction of 'N' in solution ; |
| \[{{y}_{M}}\] = Mole fraction of 'M' in vapour phase ; |
| \[{{y}_{N}}\] = Mole fraction of 'N' in vapour phase) |
A) \[({{x}_{M}}-{{y}_{M}})<({{x}_{N}}-{{y}_{N}})\]
B) \[\frac{{{x}_{M}}}{{{x}_{N}}}<\frac{{{y}_{M}}}{{{y}_{N}}}\]
C) \[\frac{{{x}_{M}}}{{{x}_{N}}}>\frac{{{y}_{M}}}{{{y}_{N}}}\]
D) \[\frac{{{x}_{M}}}{{{x}_{N}}}=\frac{{{y}_{M}}}{{{y}_{N}}}\]
Correct Answer: C
Solution :
\[\because P_{N}^{o}>P_{M}^{o}\] \[\therefore y_{N}^{{}}>X_{N}^{{}}\]\[\And \,X_{M}^{{}}>y_{M}^{{}}\] Multiply we get \[y_{N}^{{}}X_{M}^{{}}>{{X}_{N}}{{y}_{M}}\] \[\therefore \]Ans. is [c]
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