For a dilute solution 2.5 g of a non volatile non electrolyte solute in 100 g of water , the elevation in boiling point at 1 atm pressure is 2 degree celcius . Assuming concentration of solute is much lower than the concentration of solvent the vapour pressure (mm of Hg ) of the solution is (take Kb = 0.76 K Kg mol^-1)


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