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J. W. Hill, R. H. Petrucci, T. W. McCreary, & S. S. Perry General Chemistry, 4th edition.

Review Question 13.13

What plot of experimental data can be used to evaluate the activation energy, Ea, of a reaction? How is Ea related to this plot?




Answer:

The experimental data required to evaluate the activation energy are rate constants as a function of absolute temperature. If ln k is plotted against 1/T, a straight line should result and the slope of the line is equal to –Ea/R, where R is the ideal gas constant in energy units.