An aqueous 81 500 m solution of a non-volatile and non-electrolyte solute is taken in a closed container. Calculate percentage relative humidity present inside the container at equilibrium.

Question

An aqueous 81 500 ​ m solution of a non-volatile and non-electrolyte solute is taken in a closed container. Calculate percentage relative humidity present inside the container at equilibrium.

TestHub · Accepted Answer

m = n solvent ​ n solute ​ ​ × 18 1000 ​ = 81 500 ​ n solvent ​ n solute ​ ​ = 9 1 ​ RLVP = P o ​ P o ​ − P s ​ ​ = n Total ​ n solute ​ ​ = 10 1 ​ % decrease in vapour pressure = 10% Relative humidity = 90%

Chemistry - Liquid Solution Question with Solution | TestHub

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JEE Main (2028)

JEE Main + Advanced (1 year 12th class)