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Equilibrium

Learn about chemical equilibrium. Find out what happens when chemical reactions achieve equilibrium, calculate equilibrium constants, and use Le Chatelier's Principle to predict what happens when equilibrium is disturbed.

Chemical Equilibrium
Learn about the basics of chemical equilibrium, including how to write the expression for chemical equilibrium.

Le Chatelier's Principle
Learn what Le Chatelier's Principle is and how it can be applied to predict the effect of a change in conditions on chemical equilibrium.

Chemical Reaction Orders
Learn how to classify chemical reactions using kinetics. Identify and define zero, first, second, mixed, and higher order reactions.

Catalysts and Catalysis
Learn what catalysts are and how they affect the activation energy and reaction rate of a chemical reaction.

Factors that Affect the Chemical Reaction Rate
Several factors affect the rate at which chemical reactions proceed. Understanding these factors will help you predict the direction and speed of a chemical reaction.

Equilibrium Constant
The equilibrium constant is calculated from the expression for chemical equilibrium. Learn what the equilibrium constant, how to calculate the equilibrium constant and what it means if the equilibrium constant is very large or very small.

Equilibrium Constant Example Problem
This example problem demonstrates how to find the equilibrium constant of a reaction from equilibrium concentrations of reactants and products.

Equilibrium Constant Example Problem
This example problem demonstrates how to use the equilibrium constant of a reaction to determine equilibrium concentrations of reactants and products.

Equilibrium Constant For Gaseous Reactions Example Problem
This example problem demonstrates how to find the equilibrium constant and pressure equilibrium constant of a gaseous reaction from the pressures of the gases.

Equilibrium Constant and Reaction Quotient Example Problem
This example problem demonstrates how to use the reaction quotient to predict the direction of a chemical reaction towards equilibrium.

Equilibrium Concentration Example Problem
This example problem demonstrates how to calculate the equilibrium concentrations from initial conditions and the reaction's equilibrium constant. This equilibrium constant example concerns a reaction with a "large" equilibrium constant.

Equilibrium Concentration Example Problem
This example problem demonstrates how to calculate the equilibrium concentrations from initial conditions and the reaction's equilibrium constant. This equilibrium constant example concerns a reaction with a "small" equilibrium constant.

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