Question

An open beaker of water in quilibrium with water vapour is in a sealed container. When a few grams of glucose are added to the beaker of water, the rate at which water molecules :

(1) leaves the vapour decreases

(2) leaves the solution decreases

(3) leaves the vapour increases

(4) leaves the solution increases

Comments

Equilibrium, factors affecting equilibria

Answer 1

Ans. (3) leaves the vapour increases

Sol. The vapour pressure of solution will be less than vapour pressure of pure solvent, so some vapour molecules will get condensed to maintain new equilibrium.

Comments

Nice theoretical answer