Journal of Plasma Physics


The contribution of electronic excitation to the total specific heats of high temperature gases: a misinterpreted absence

M. Capitellia1 and E. Ficocellia1

a1 Centro di Studio per la Chimica dei Plasmi del C.N.R.—Instituto di Chimica Generale ed Inorganica dell'Università—Bari (Italy)


It is shown that the reported absence of a contribution of electronic excitation on to the total specific heats of helium and nitrogen (10,000–35,000°K, 10−1−10 atm) should be attributed to the presence of compensation effects among the various terms into which the total specific heat can be separated and that these terms are influenced by the electronic contribution.

(Received June 29 1970)