Question

What will happen if a saturated solution of potassium chloride prepared at 50 degrees is allowed to cool at room temperature?

Answer 1

If a saturated solution is cooled below a temperature at which the solution is prepared, then it will lead to a decrease in solubility of the solute. This decrease in solubility will result in some of the dissolved solute to precipitate out as solid crystals which can be easily observed in the container carrying the solution. Again, if this solution is heated, the crystals would dissolve in the solution and no longer be visible.