Maxwell-Boltzmann Distribution
The Maxwell-Boltzmann distribution of molecular speeds in an ideal gas. The most likely speed v_p is less than the rms speed v_rms. Although very high speeds are possible, only a tiny fraction of the molecules have speeds that are an order of magnitude greater than v_rms.
Source
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"OpenStax College, Kinetic Theory: Atomic and Molecular Explanation of Pressure and Temperature. February 4, 2013."
http://cnx.org/content/m42217/latest/
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