Enter the temperature, rate coefficient, and constant. The activation energy calculator will evaluate and display the total activation energy.
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Activation Energy Formula
The following equation can be used to calculate the activation energy of a reaction.
E = -R * T * ln(k/A)
- Where E is the activation energy
- R is the gas constant
- T is the temperature
- k is the rate coefficient
- A is the constant
Activation Energy Definition
Activation Energy is the total energy needed for a chemical reaction to occur. It’s most often used in chemistry and thermodynamics. These reactions can include things like combustion.
Activation Energy Example
How to calculate an activation energy?
- First, determine the temperature.
Measure the temperature of the substance.
- Next, determine the rate coefficient.
Measure or calculate the rate coefficient.
- Next, determine the constant A.
Empirically determine the constant A.
- Finally, calculate the activation energy.
Using the formula above, calculate the activation energy.
Activation energy is the total energy required for a chemical reaction to occur.