Graham's Law of Effusion


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Title Graham's Law of Effusion
Description Students determine that the ratio of the rates of effusion and the average velocities of the particles of a mixture of heavy molecules and light molecules, at constant temperature,are the same. They use the ratio of the rates of effusion to determine the ratio of molar masses of the heavy (H) and light (H) molecules.
Subject Chemistry
Level High School
Type Lab
Duration 60 minutes
Answers Included No
Language English
Keywords Effusion, Graham's Law of Effusion, Kinetic-Theory of Gases, molar mass
Simulation(s) Gas Properties


Author(s) Roberto Marrero
Contact Email robertom@wcs.edu
School / Organization Brentwood High School, Williamson Co, TN
Date submitted 1/18/10
Date updated 1/18/10