THE COMPARISON OF IONIZED GASES THERMODYNAMIC PROPERTIES EVALUATED BY THOMAS-FERMI AND SAHA MODELS IN THE AREA OF THEIR COMMON APPLICABILITY
The pressure P, the specific internal energy E and the degree of ionization  depending on the temperature T are obtained for the plasma of fluoride, nitrogen and oxygen on the basis of the model of ionization equilibrium (Saha model) and the Thomas-Fermi model. These results are compared in the region where the both models work: 1 eV -7 -3 g/cm 3.