Vapour pressure of a solvent decreases by 1% on adding a non-volatile solute `NaSO_(4)`. If it
Channel: Doubtnut
Date: 2020-03-29

Vapour pressure of a solvent decreases by 1% on adding a non-volatile solute `NaSO_(4)`. If it dissociates up to 25% then determine mole-fraction of solute, if solvent is 5 mole. `(0.01p_(A)^(@))/(p_(A)^(@))=(1.5n_(B))/(n_(B)+n_(A))`