Chemical equilibrium

<p>In a <a href="/facts/Chemical_reaction/GpqWlKrz">chemical reaction</a>, chemical equilibrium is the state in which both the <a href="/facts/Reagent/c3GLInCu">reactants</a> and <a href="/facts/Product_(chemistry)/8uCoDUdv">products</a> are present in <a href="/facts/Concentration/wqBmz5od">concentrations</a> which have no further tendency to change with time, so that there is no observable change in the properties of the <a href="/facts/Thermodynamic_system/VUr0kpWu">system</a>. This state results when the forward reaction proceeds at the same rate as the <a href="/facts/Reversible_reaction/V3Afejgb">reverse reaction</a>. The <a href="/facts/Reaction_rate/Prwvxq0y">reaction rates</a> of the forward and backward reactions are generally not zero, but they are equal. Thus, there are no net changes in the concentrations of the reactants and products. Such a state is known as <a href="/facts/Dynamic_equilibrium/jKq8wjyu">dynamic equilibrium</a>.
It is the subject of study of <i><a href="/facts/Equilibrium_chemistry/mkjCWwnx">equilibrium chemistry</a></i>.
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Chemical equilibrium open-in-new

Chemical equilibrium