Enter the forward activation energy (J) and the change in enthalpy (J/mol) into the calculator to determine the Reverse Activation Energy.
Reverse Activation Energy Formula
The following equation is used to calculate the Reverse Activation Energy.
RAE = FAE – dH
Variables:
- Where RAE is the Reverse Activity Energy (J)
- FAE is the forward activation energy (J)
- dH is the change in enthalpy (J/mol)
How to Calculate Reverse Activity Energy?
The following two example problems outline the steps and information needed in order to calculate the Reverse Activity Energy.
Example Problem #1:
- First, determine the forward activation energy (J). In this example, the forward activation energy (J) is measured to be 41.
- Next, determine the change in enthalpy (J/mol). For this problem, the change in enthalpy (J/mol) is calculated to be 3.
- Finally, calculate the Reverse Activation Energy using the formula above:
RAE = FAE – dH
Inserting the values from above and solving the equation with the imputed values gives:
RAE = 41 – 3= 38(J)
Example Problem #2:
Using the same process as example problem 1, we first define the needed variables outlined by the formula. In this case, the values are provide as:
forward activation energy (J) = 400
change in enthalpy (J/mol) = 24
Entering these values into the formula or calculator above gives us: RAE = 400 – 24 = 376 (J)
