Arrhenius calculations

The Arrhenius equation can be used to calculate the missing value of: A, K or Ea. Remember to convert Ea values to J/mol as they are usually in KJ/mol. Therefore you need to be consistent with the gas constant which is: 8.314 JK^-1 mol^-1. T must be in Kelvin. The other tip is that when you are calculating an Ea value, use the natural log form: lnK = lnA - Ea/RT.

Arrhenius Equation Calculations