The properties of solutions are dominated by the intermolecular forces between solute and solvent. Some dissolution processes are quite complex and depend on different sides of a molecule doing different things. Solids and Gases make solutions. A saturated solution has the same rate precipitation and dissolution.
Gases dissolve in liquids like solids, but usually have much simpler behavior.
For example, gases are less soluble at high temperature than at low temperature. The constuency of mixtures is expressed by various concentration units. Know the definitions of each of the following useful measures of concentration The solubility of a gas depends on its partial pressure above the solution. The vapor pressure of a solvent depends on how pure it is. Raoult' Law Impurities in a substance cause a change in its phase diagram by making the liquid region bigger.