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
- First, determine the frequency factor
Calculate or measure the frequency factor of the reaction.
- Next, determine the activation energy
You can use the calculator linked above to determine the activation energy of the reaction.
- Next, measure the temperature
Measure the temperature of the reaction in Kelvin.
- 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.
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