How does pressure and temperature affect the solubility of a solid in a liquid?

Answer 1

Air pressure does affect the solubility of a gas in a liquid. The higher the pressure above a liquid, the more gas that can be dissolved in that liquid, to a limit of course. The best example of this is Carbonated Beverages such as club soda, Coka Cola, etc. The carbon dioxide gas is bubbled into the liquid coke under pressure. As long as the pressure above the liquid is maintained, most of the gas will remain in solution. When the cap is screwed off (or pressure is released in some other manner) the gas begins to escape hence the hiss when a Coke is opened.

Answer 2

The dissolving process involves a consideration of the relative strength of three intermolecular attractive forces. The type of forces between solute-solute molecules and solvent-solvent molecules must be considered. These intermolecular attractions must be broken before new solute-solvent attractive forces can become effective. Perhaps the bond breaking and bond forming processes take place simultaneously.

Answer 3

as tempressure decrease and pressure increase the solubility of gases in water increase.

Answer 4

Both temperature and pressure tend to increase solubility of solids.

(increasing temp causes a decrease in solubility for gases.)