Chemical Equilibrium

Chemical equilibrium is the final condition of a chemical reaction after the reacting substances have completey reacted. Depending on the reaction, they may reach this condition quickly or slowly, but eventually they will come to a condition in which there are definite, unchanging amounts of all the relevant substances.

Chemical equilibrium is one of the most important features of chemical processes, involving everything from the dissolving of sugar in a cup of coffee to the vital reactions that carry essential oxygen to cells and poisonous carbon dioxide away from them.