What is solubility?
(a) a saturated solution
In a saturated solution, it will not dissolve..
(b) an unsaturated solution
In an unsaturated solution, the solute will simply dissolve.
(c) a supersaturated solution
In a supersaturated solution, the solution is unstable - so the addition of more solute would cause the dissolved solute to crystallize.
Temperature almost always increases solubility, except for with gases. Pressure increases the solubility of gases.