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A similar reaction, the reaction between phenolphthalein and NaOH is first order in respect to NaOH....

A similar reaction, the reaction between phenolphthalein and NaOH is first order in respect to NaOH. If the rate constant is calculated is 1.40*10-2 LM-1s-1 at 20.95 C and 5.72*10-2 LM-1s-1 at 47.05 C. What is the activation energy of the reaction?

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