Enter the frequency factor, activation energy, and temperature into the calculator to determine the rate constant using the Arrhenius equation.
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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)
Arrhenius Equation Definition
The arrhenius equation describes the relationship between the rate constant of a chemical reaction and the temperature, activation energy, and frequency factor.
Arrhenius Equation Example
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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