
Diatomic v 2.1  Statistical Mechanics In the Statistical
Mechanics window, Diatomic can plot
distributions at up to four temperatures with
colorcoded curves for
as well as plot, as a function of temperature for each type of motion,
The statistical mechanical calculations include the effects from anharmonic vibrations, centrifugal distortion, vibrationrotation interaction, lowlying electronic states, and electronic state degeneracy. The screen image below shows speed distributions for hydrogen at 100, 300, and 1000 K. 
