Question

Assertion: A supersaturated solution crystallizes as it cools. Reason: The solubility increases as the temperature decreases.​

Answer 1

Supersaturation is a state of a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances. As a general rule, the more heat is added to a system, the more soluble a substance becomes. There are exceptions where the opposite is true. Therefore, at high temperatures, more solute can be dissolved than at room temperature. If this solution were to be suddenly cooled at a rate faster than the rate of precipitation, the solution will become supersaturated until the solute precipitates to the temperature-determined saturation point. The precipitation or crystallization of the solute takes longer than the actual cooling time because the molecules need to meet up and form the precipitate without being knocked apart by water.

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Answer 2

Answer:

Both assertion and reason are correct

Explanation:

It crystallizes as the solution cools . Depending on the type of solute , some solutes solubility increases as the temperature increases and for some solutes soubility decreases as the temperature increases . This is not connected to crystallization if supersatured solutions .

Hence, assertion and reason both are correct