LeChatelier's principle is a qualitative approach to reason about how systems at equilibrium will react to changes. In this movie, we consider how changes in volume or pressure influence systems at equilibrium.

These tutorials are part of a set of equilibrium materials developed with the Open Learning Initiative at Carnegie Mellon University. To access the entire course, please see http://oli.web.cmu.edu/jcourse/webui/guest/look.do?section=buffers.