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The molar volume of X(l)(d=0.9g/mL) increases by a factor of 3000 as it vaporises at 27^(@)C and that of Y(l)(d=0.88 g/mL) increases by a factor of 8000 at 27^(@). A miscible liquid solution of X and Y at 27^(@)C has a vapour pressure of 50 torr. The mole fraction of Y in solution is : ( Given : 0.082 atm/L/mol/K, Molar mass of X=75, Molar mass of Y=88) |
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Answer» 0.48 |
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