EngineeringToolkit

Arrhenius Equation Formula

Describes the temperature dependence of reaction rates.

Formula

k = A·e^(-Ea/RT)

Discipline: Chemical Engineering. Result unit: 1/s.

Variables and units

  • k — Rate Constant (1/s): Reaction rate constant
  • A — Pre-exponential Factor (1/s): Pre-exponential factor
  • Ea — Activation Energy (J/mol): Activation energy
  • R — Gas Constant (J/(mol·K)): Universal gas constant
  • T — Temperature (K): Absolute temperature