Module 7

Module 7—Principles of Chemical Equilibrium

Lesson Summary

 

In Lesson 6 you considered the following question:

• What is Le Châtelier’s principle and how is it used to predict changes in chemical equilibrium systems?

Le Châtelier’s principle describes how chemical systems at equilibrium react to stresses such as changes in concentration of species in the system, change to temperature, and changes in the volume (pressure) of the system. Equilibrium systems undergo a shift to a new equilibrium by either favouring the forward or the reverse reaction. In this lesson you learned how to identify a stress placed on a system, the component in the system affected by the stress, and the most likely action by the system to counteract the stress.

 

Proceed to the Module Assessment where you will have the opportunity to apply your understanding of Le Châtelier’s principle and some of the other aspects of equilibrium you have learned in Module 7.

Chemistry 30 Learn EveryWare © 2009 Alberta Education