Total voluminal speed of an elementary step

The total voluminal speed of an elementary step is the difference between the voluminal speeds of the jumps in two opposite directions, and it can be given as  

For a pseudo-first-order reaction, the voluminal speed can be given as  

The voluminal speed constants, a and k , follow the Arrhenius law [4.1], and the difference in the activation energies is the enthalpy of reaction [4.4]. 

We will apply the model of Junqjs to a number of reactions of interfaces, for example, in the case of heterogenous reactions, the purpose of which is to create or 

In the majority of cases, we will discuss Wagner solids MG made of a G anion and an IVT catioa These reactions occur either at a solid-solid interface (e g. M/MG) or at a sohd-gas interface (e.g. MG/G), where the gas is adsorbed on the solid by means of a weak bond according to the Wolkenstein theory (see section 6.4.3.1). 

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