Activation Energy Formula:
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Definition: Activation Energy is the minimum amount of energy required to initiate a chemical reaction.
Purpose: This calculator determines the activation energy by comparing reaction rates at two different temperatures.
The calculator uses the Arrhenius equation in this form:
Where:
Details: Knowing activation energy helps predict reaction rates, design chemical processes, and understand reaction mechanisms.
Tips: Enter reaction rates at two different temperatures (in Kelvin). Ensure temperatures are different and all values are positive.
Q1: Why do we need two different temperatures?
A: The temperature dependence of reaction rates allows us to calculate the energy barrier (activation energy).
Q2: What units should I use for temperature?
A: Always use absolute temperature in Kelvin (K) for these calculations.
Q3: Can I use any two temperatures?
A: Yes, as long as they're different and in the range where the reaction occurs.
Q4: What if my reaction rates are in different units?
A: Convert them to the same units (mol/m³s) before calculation.
Q5: Why does the calculator show no result?
A: Check that all values are positive and temperatures are different.