Reversible reactions, equilibrium, and the equilibrium constant K. Learn how to calculate K, and how to use K to determine if a reaction strongly favors products or reactants at equilibrium.

[Free Registration/Login may be required to access all resource tools.] Students determine the temperature at which a reversible reaction will achieve equilibrium by using the Gibbs free energy equation, and then describe the...

Discusses and explores the impact of random pressure errors on the equilibrium constant in a chemical reaction. Requires Java.

Learn how volume changes affect gas-phase reactions by altering their concentrations and reaction rates. View examples with solutions and a table of predicted equilibrium changes. Also find links to tutorials and animations of other...

Explains what the equilibrium constant is and presents a virtual experiment where its value must be determined in two chemical reactions. Requires Java.

Authors make a case for the delicate state of equilibrium of an ecosystem. Also describes the important functions and services of ecosystems.

Use this college level resource as an introduction to chemical thermodynamics.

This is a list of 40 problems/exercises to solve covering the content of Chapter 9: Statics and Torque from the AP Physics online text.

By the end of this section, you will be able to: Explain what the expenditure-output model/Keynesian cross diagram shows and what the equilibrium point on the diagram represents. Analyze the consumption function, investment function,...

With an overview of topics related to chemical equilibrium, this site provides a foundation to a study of thermodynamics and energy. The site specifically addresses free energy and the Gibbs function.

With an overview of topics related to chemical equilibrium, this site provides a foundation to a study of thermodynamics with specific attention on the second law.

An exploration of how the Kansas-Nebraska Act of 1854 impacted the debate between free and slave states, and the precarious political equilibrium. It looks at how Stephen Douglas tried to avoid a national conflict in the debate over...

Read about factors, besides price, that affect a quantity that is demanded. This resource is designed for students who are taking a college-level microeconomics course.

Standford University provides interesting biographical and professional information on Stephen Jay Gould and his many contributions to scientific thought, including his efforts to help people see science "As something that is important...

With an overview of topics related to chemical equilibrium, this site provides a foundation to a study of thermodynamics and heat engines. Other topics covered include the fall of heat, nuclear plants, and more.

The American Institute of Biological Sciences offers this article by Niles Eldredge, evolutionary theorist and curator at the American Museum of Natural History. Eldredge begins with Darwin's theories and summarizes subsequent thought,...

Learn the different types of sensory receptors, and describe the structures responsible for the special senses of taste, smell, hearing, balance, and vision.

By the end of this section, you will be able to explain the forces exerted by muscles; state how a bad posture causes back strain; discuss the benefits of skeletal muscles attached close to joints; and discuss various complexities in the...

Provides a full and in-depth description of the theories of supply and demand.

This site from the University of Illinois at Chicago provides an in-depth article on Human Genetics, with a focus on primarily population genetics. The article is factual and informative full of charts, formulas, and extensive text. A...

The downloadable monograph investigates forces and forms in large structures. Three teaching units are included that explore bridge engineering.

With an overview of topics related to chemical equilibrium, this site provides a foundation to a study of thermodynamics and spontaneous change. Other topics covered include entropy, spontaneous macroscopic change, and more.

This site offers a variety of economics-related newspaper headlines in perfectly competitive markets, and each headline offers discussion questions related to that topic.

We encounter electrochemical cells in all facets of our everyday lives. Learn about the two types of electrochemical cells: galvanic, also called Voltaic, and electrolytic. Discusses the reactions that take place in cells, the formulas...