Finding the Activation Energy
- Very often, the Arrhenius Equation is used to calculate the activation energy of a reaction
- A graph of ln k against 1/T can be plotted, and then used to calculate EA
- This gives a line which follows the form y = mx + c
Sketch of ln k against 1/T graph here
The graph of ln k against 1/T is a straight line with gradient -Ea/R
- From the graph, the equation in the form of y = mx + c is as follows:
y = mx + c image here
You are not required to learn this equation however it is helpful in understanding the effects of temperature on the rate constant.
Complete the following table, plot a graph of ln k against 1/T and use this to determine the activation energy of the reaction.