# Explain a graphical method for determination of activation energy.

9 views
ago
closed ago

Explain a graphical method for determination of activation energy.

+1 vote
ago by (27.2k points)
selected ago by

Activation energy can be determined graphically from the Ink vs 1/T graph. From the graph,

In k = ln(A$e^{-E_a/RT}$)

In k = In A + in $e^{-E_a/RT}$

In k = In A + - $E_a/RT$

This is in the form of y = mx + c

When a graph is plotted between 1/T and ln

k, a straight line is obtained.

Slope of the line = -Ea/R

Therefore, Ea = slope × R