Fundamental view on the calculation of internal partition functions using occupational probabilities
Abstract
From first principles, the author gathers a few general rules that need to be abided by in the calculation of the internal partition functions (IPFs) of individual molecules. These rules are violated in many schemes in the literature where occupational probabilities are used including those using the PlanckLarkin partition function (PLPF) within the chemical picture. Considering these rules is useful from conceptual and practical points of view. A solution is introduced to assure fulfilling the above mentioned rules when using occupational probabilities. Sample calculations are performed showing quantitative significance of inaccuracies caused by dishonoring such rules.
 Publication:

Physics Letters A
 Pub Date:
 June 2013
 DOI:
 10.1016/j.physleta.2013.02.044
 arXiv:
 arXiv:1210.0053
 Bibcode:
 2013PhLA..377.1119Z
 Keywords:

 Physics  Plasma Physics
 EPrint:
 15 pages, 4 figures, under review