Arrhenius Equation Calculator

Enter the frequency factor, activation energy, and temperature into the calculator to determine the rate constant using the Arrhenius equation.

Arrhenius Equation

The following formula is used to calculate the rate constant of a reaction using the Arrhenius euqation.

K = A * e^(-Ea/ R * T)

  • Where K is the rate constant (sec^-1)
  • A is the frequency factor (sec^-1)
  • Ea is the activation energy (kj mol^-1)
  • T is the temperature (K)
  • R is the gas constant ( 8.314*10^-3 kj mol^-1 K^-1)

How to calculate rate constant using Arrhenius equation

  1. First, determine the frequency factor

    Calculate or measure the frequency factor of the reaction.

  2. Next, determine the activation energy

    You can use the calculator linked above to determine the activation energy of the reaction.

  3. Next, measure the temperature

    Measure the temperature of the reaction in Kelvin.

  4. Finally, calculate the rate constant

    Calculate the rate constant using the formula above and values from steps 1-3.

FAQ

What is the Arrhenius Equation?

The arrhenius equation is a formula used to relate and calculate the rate constant of a chemical reaction to the temperature, activation energy, and frequency factor.

What is the rate constant

A rate constant is a constant that measures the rate at which a chemical reaction takes place.

arrhenius equation calculator

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