Universal Gas constant and arrhenius equation

[member 392791]

Hello,

I am curious as to how the Universal Gas Constant, R, is important with regards to the rates in solids? It is in the Arrhenius Equation

 

[DrClaude]

The gas constant is simply $R \equiv N_\mathrm{A} k_\mathrm{B}$, the Boltzmann constant scaled for a molar quantities.