Temperature and Pressure Effects on Solubility

The solubility of most solids increases with increasing temperature. However, the solubility of gases in liquids decreases with increasing temperature. For example, if you open a cold bottle of soda and a warm bottle of soda, more gas is released by the warm soda. This is the basis of thermal pollution, in which the solubility of oxygen in stream or lake water is decreased if the water is polluted by heat. 

The solubility of liquids and solids are, in general, not affected by changes in pressure. However, the solubility of gases is affected. The greater the pressure is, the greater the solubility of the gas in a liquid. 

---