Arrhenius Number

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

Arrhenius Number

Arrhenius number ( \(Ar\) ) (dimensionless number) is used in mass transfer in general, and reaction rate calculations in particular.

Arrhenius Number FORMULA

\(Arrhenius \; number  \;=\;  \frac { activation \; energy }  { universal \; gas \; constant  \;\;x\;\;  temperature  } \)

\(Ar = \frac {E_a}  {RT} \)

Where:

\(Ar\) = Arrhenius number

\(E_a\) = activation energy

\(R\) = universal gas constant

\(T\) = temperature

 

Tags: Equations for Mass