Sarthaks Test
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Explain a graphical method for determination of activation energy.

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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

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