Find the value of mole fraction of the solute when vapour pressure of glucose is 750 mm Hg at 373 K in dilute solution.

P∘−PsP∘=nn+N∴ nn+N=760−750760=176n = number of moles of glucose N = number of moles of waterAt boiling point of water P0 = 1 atm = 760 mm Hg