Instantaneous Speed Distribution
    Temperature=
to show Maxwell-Boltzman distribution for this temperature, check, then push set 'n play button.

Please wait for the animation to completely load. 

In this applet, N = nR = NpkB (i.e. kB = 1).  This, then, gives the ideal gas law as PV = NT.

Credits

Script by Wolfgang Christian, modified by Anne J. Cox
Java applets by Wolfgang Christian.