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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.
Un équilibre chimique est le résultat de deux réactions chimiques simultanées dont les effets s'annulent mutuellement.
When a chemical reaction is at equilibrium, any disturbance of the system, such as a change in temperature, or addition or removal of one of the reaction components, will "shift" the composition to a new equilibrium state.
Learning Objectives. By the end of this section, you should be able to: Analyze equilibrium reaction equations. When the concentrations of reactants and products become constant, the system is said to have reached a point of equilibrium. The equilibrium state is dynamic.
Learn about the concepts and applications of chemical equilibrium, such as dynamic equilibrium, reversible reactions, equilibrium constants, reaction quotients, Le Chatelier's principle, and Gibb's free energy. Test your knowledge with quizzes and practice questions.
Introduction to reaction quotient Qc. The reaction quotient Q. Worked example: Using the reaction quotient to predict a pressure change. Practice. This unit is part of the Chemistry library. Browse videos, articles, and exercises by topic.
In a balanced chemical equation, the total number of atoms of each element present is the same on both sides of the equation.
