Question

graphical method to determine activation energy of a reaction

Answer 1

Determining the Activation Energy

Graphically

We can graphically determine the activation energy by manipulating the Arrhenius equation to put it into the form of a straight line. Taking the natural logarithm of both sides gives us:

ln

A slight rearrangement of this equation then gives us a straight line plot (y = mx + b) for ln k versus 1/T, where the slope is –Ea/R:

ln