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Saha equation

(Saha ionization equation, Saha-Langmuir equation)
(equation relating ionization to temperature)

The Saha equation (Saha ionization equation or Saha-Langmuir equation) gives the relative count of ions in a particular ionization state (in this case, number of "missing" electrons) expected based upon the temperature and other factors regarding a gas. It is used in stellar models. One form:

Ni+1    Zi+1  2
———— = ———— ———— (2π mekT)3/2ei/kT
 Ni     Zi  neh3

(equation,physics,model,ionization) equation

Referenced by:
number density
state of ionization