Simon Fraser University
Chem1 Virtual Textbook: Velocities of Gas Molecules and Boltzmann Distribution
The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section deals with both Boltzmann Distribution and the velocity of gas molecules.
Concord Consortium
Concord Consortium: Molecular Workbench: Barometric Formula
Adjust the altitude and temperature in this simulation to observe how gas pressure is affected by these changes.
Other
University of Arkansas: Kinetic Theory
A little background and a great Java applet that allows you to see the distribution of particles by their velocity.
Famous Scientists
Famous Scientists: Ludwig Boltzmann
Read about the discoveries of Ludwig Boltzmann in this article.
University of Virginia
University of Virginia: Kinetic Theory, a Brief Review
The derivation of the Boltzmann distribution in detail. Shows calculations and graphs, with links to animations and video to further explain.
Physics Aviary
Physics Aviary: Maxwell Distribution Lab
This lab is designed to have students examine distribution of speeds for gases in a box.
University of St. Andrews (UK)
University of St. Andrews: Ludwig Boltzmann (1844 1906)
A very in-depth biography of this wonderful individual who had numerous successes, Maxwell-Boltzmann Distribution Curves included.
Khan Academy
Khan Academy: What Is the Maxwell Boltzmann Distribution?
In a gas, there are lots of molecules traveling at lots of different speeds. Here's a framework for thinking about that.
University of Waterloo (Canada)
University of Waterloo: Kinetic Theory of Gases
Takes the Boltzmann distribution mathematics and explains it. Not a simple site, but does provide nice historical links in addition to high-level explanation of the distribution.