Crystals form when a hot saturated solution is allowed because as the solution cools, the solubility of the solute decreases. This means that the solution becomes supersaturated, and the solute molecules start to come together and form a solid crystal lattice.
The higher the temperature of the solution, the more solute can be dissolved in it. As the temperature decreases, the solubility of the solute decreases as well. This leads to the formation of crystals as the solution becomes supersaturated.
A saturated solution is a solution in which the maximum amount of solute has been dissolved at a given temperature and pressure. Any additional solute added to the solution will not dissolve and will instead form a separate solid phase.
A solution is considered saturated when no more solute can be dissolved in it at a given temperature and pressure. This can be determined by adding more solute to the solution and observing if it dissolves or forms a separate solid phase.
Yes, crystals can form in a room temperature saturated solution. However, the rate of crystal formation may be slower compared to a hot saturated solution. The cooling of the solution will still lead to a decrease in solubility and the formation of crystals over time.