Temperature, pressure and substance composition can impact the solubility of a substance. Reactions between solutes and solvents can decrease the solubility of a substance as well.
The solubility, or the amount of a substance that can be dissolved in a given solvent, varies based on a variety of factors. Solids, gases and liquids all have different levels of solubility.
Le Chatelier's principle explains why and how substances become more soluble. The principle notes that when a chemical equilibrium is under stress, it will react in a different manner to handle the stress.
Each of these states reacts differently with temperatures and pressures, which can increase or decrease the solubility. For instance, gases that are exposed to decreasing temperatures, will be more likely to have higher solubility than at those that are lower. There are no temperatures that provide a measured effect on a liquid's solubility.