A beaker (A) contains 20 g sugar in 100 g water. Another beaker (B) contains 10 g of sugar in 100 g water. Both beakers are placed under a bell jar and allowed to stand until equilibrium is reached. H

Question

A beaker (A) contains 20 g sugar in 100 g water. Another beaker (B) contains 10 g of sugar in 100 g water. Both beakers are placed under a bell jar and allowed to stand until equilibrium is reached. How much water will be transferred from one beaker to the other? Neglect the mass of water vapour present at equilibrium.

Prashant Kotian · Accepted Answer

Correct answer: C. At equilibrium concentrations equalise. Let w g transfer from B to A: 20/(100 + w) = 10/(100 − w) → 200 − 2w = 100 + w → w = 100/3 = 33.33 g from B to A.

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