Thermal Velocity

The thermal velocity or thermal speed is a typical velocity of the thermal motion of particles which make up a gas, liquid, etc. Thus, indirectly, thermal velocity is a measure of temperature. Technically speaking it is a measure of the width of the peak in the Maxwell-Boltzmann particle velocity distribution. Note that in the strictest sense thermal velocity is not a velocity, since velocity usually describes a vector rather than simply a scalar speed.

Since the thermal velocity is only a "typical" velocity, a number of different definitions can be and are used.

Taking to be the Boltzmann constant, is the temperature, and is the mass of a particle, then we can write the different thermal velocities:

Read more about Thermal Velocity:  In One Dimension, In Three Dimensions

Other articles related to "thermal velocity, velocity":

Thermal Velocity - In Three Dimensions
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