# Arrhenius number

## Description

In chemical kinetics, the pre-exponential factor or A factor is the pre-exponential constant in the Arrhenius equation. Here named as Arrhenius number.

Related formulas## Variables

α | Arrhenius number (dimensionless) |

E_{a} | Activation energy (J*mol^{-1}) |

R | molar gas constant |

T | Temperature (K) |