Why are there crystals formed when a hot saturated solution is allowed

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SUMMARY

Crystals form when a hot saturated solution cools due to the temperature-dependent nature of solubility. As the temperature decreases, the solubility of the solute typically decreases, leading to a supersaturated solution. This condition causes the solute to precipitate out of the solution, resulting in crystal formation. The phenomenon is a direct consequence of the solute's decreased solubility at lower temperatures.

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Celluhh
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Homework Statement




why are there crystals formed when a hot saturated solution is allowed to cool? the solid has already dissolved into the solution, forming the solute, so when the solution is cooled, and the temp decreases. does this mean they dissolve out of the solution?



(i know this hypothesis may sound ridiculous but yeah)
 
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Solubility is often temperature dependent, and in most cases (but not all) goes up with temperature. When temperature changes and solution becomes supersaturated, solute "leaves" the solution.
 

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