Statistical Thermodynamics and Rate Theories/Data

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Molecule (K) (K)
H2[1] 87.547 6332.52
N2Invalid parameter in <ref> tag 2.0518 3393.54
O2Invalid parameter in <ref> tag 2.0793 2273.60
F2Invalid parameter in <ref> tag 1.2808 1318.87
HFInvalid parameter in <ref> tag 41.345 5954.27
HClInvalid parameter in <ref> tag 15.240 4303.41
NOInvalid parameter in <ref> tag 2.4524 2739.79
C2H2[2] 1.7012

Example[edit | edit source]

Calculate the ground state characteristic rotational () and characteristic vibrational () temperatures for molecular hydrogen, H2.

Where is the reduced Planck constant, is the internuclear distance for ground state hydrogen[1], is the Boltzmann constant, and is the reduced mass.

The characteristic vibrational temperature () is calculated using the following equation

Where is Planck's constant, is the Boltzmann constant, and is the vibrational frequency of the molecule. To retain units of K the vibrational frequency must be changed to units of s-1.

References[edit | edit source]

  1. a b http://webbook.nist.gov/cgi/cbook.cgi?ID=1333-74-0
  2. E. Plyler, E. Tidwell, and T. Wiggins, (1963). Rotation-Vibration Constants of Acetylene. Journal of Optical Society America. Table 4, Data section in appendix