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Abstract
Electron-molecule collisions play a significant role in chemical transformations in a silent electric discharge. The reaction rate coefficients of electron-molecule collisions in various gaseous mixtures of Ar, N2 or CO with O2 have been investigated. These coefficients can be determined experimentally and calculated theoretically. The measured values are in good agreement with those calculated by theoretical methods. The reaction rate coefficients of electron-O2 molecule collisions increase with decrease of the amount of O2 in Ar/O2 mixtures, but decrease with decrease of the amount of O2 in N2/O2 or CO/O2 mixtures.