Article révisé par les pairs
| Résumé : | This paper is the second of a series devoted to the extension of ChapmanEnskog's method to inelastic collisions1). This note is mainly concerned with the study of the influence of the heat of reaction on the Maxwell distribution. As shown in the first paper this effect is in general small for the activation energy. The heat of reaction, however, can perturb the Maxwell distribution to an appreciable extent. As a result, the reaction rate is increased for exothermal, decreased for endothermal reactions. The effect is especially important for exothermal reactions. At the same time, the order of the reaction is increased. The calculations have been performed for the initial rate of a reaction of the type A0 + B → A1 + B. In this case the result can be expressed by the following equation v = v(0) (1 + 1,2 xA0xBrVT ε{lunate}*) where ε* is the activation energy, γVT the heat of reaction and xA0xB the mole fractions of A0 and B; v(0) is the reaction rate estimated by assuming Maxwell distributions for each constituent. © 1950. |
