Gas Solubility

• The solubility of a gas/liquid mixture   may be expressed as the amount of   free gas that can go into   solution at a given temperature and   pressure.

• In general, solubility will increase as   the pressure increases, and as the   temperature decreases.

• Solubility also increases as the   molecular similarity between the gas   and liquid composition increases.

• The bubble point pressure is the   pressure at which the first bubble of   free gas breaks out of solution with a   given solution gas/liquid ratio at a   given temperature.

• Free gas cannot coexist with the liquid at pressures in excess of the   bubble point

• At pressures above the bubble point,   gas solubility approaches infinity.  Only liquid is present.