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Equations 11.1.2 and 11.1.3 represent the same chemical reaction system in which the roles of the components are reversed, and both yield the same mixture of components when the change is completed. This is central to the concept of chemical equilibrium.
Equilibrium chemistry is concerned with systems in chemical equilibrium. The unifying principle is that the free energy of a system at equilibrium is the minimum possible, so that the slope of the free energy with respect to the reaction coordinate is zero.
Science. Chemistry archive. Unit 7: Chemical equilibrium. About this unit. This unit is part of the Chemistry library. Browse videos, articles, and exercises by topic. Equilibrium constant. Learn. The equilibrium constant K. Calculating equilibrium constant Kp using partial pressures. Practice. Factors that affect chemical equilibrium. Learn.
In a chemical reaction, chemical equilibrium is the state in which both the reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system. [1]
Learn about the condition and quantification of chemical equilibrium, a reversible reaction in which reactants and products are in dynamic balance. Find out how the equilibrium constant and the standard Gibbs free energy are related to the reaction.
- The Editors of Encyclopaedia Britannica
Summary. A reaction is at equilibrium when the amounts of reactants or products no longer change. Chemical equilibrium is a dynamic process, meaning the rate of formation of products by the forward reaction is equal to the rate at which the products re-form reactants by the reverse reaction.
This unit explores the how and why of chemical equilibrium. Learn about reversible reactions, the equilibrium constant, Le Châtelier's principle, solubility equilibria, and more. Practice what you’ve learned and study for the AP Chemistry exam with more than 80 AP-aligned questions.
