Unit Unit - - - - . P and P are the vapour pressures of pure liquid components, and respectively of an ideal binary solution if x represents the mole fraction of component , the total pressure of the solution formed by and will be a) P + x (P – P ) b) P – x (P + P ) c) P – x (P – P ) d) P + x (P – P ) . Osometic pressure ( p ) of a solution is given by the relation a) p = nRT b) p V = nRT c) p RT = n d) none of these . Which one of the following binary liquid mixtures exhibits positive deviation from Raoults law ?
a) Acetone + chloroform b) Water + nitric acid c) HCl + water d) ethanol + water . The Henry's law constants for two gases A and B are x and y respectively. The ratio of mole fractions of A to B is . .
The ratio of mole fraction of B and A dissolved in water will be a y ) b y ) . c y ) . d y ) . At o C the vapour pressure of a solution containing .5g a solute in 100g water is 732mm.
If K b = . , the boiling point of this solution will be a) o C b) o C c) o C d) . o C . According to Raoults law, the relative lowering of vapour pressure for a solution is equal to a) mole fraction of solvent b) mole fraction of solute c) number of moles of solute d) number of moles of solvent .
At same temperature, which pair of the following solutions are isotonic ? a) . M BaCl and .2M urea b) . M glucose and .