A student investigates the resin-catalyzed decomposition of a water-treatment byproduct. Spectroscopic evidence supports a mechanism with \(3\) elementary steps and the potential-energy profile shown. The intermediates are labeled \(\text{I}_1\) and \(\text{I}_2\). Assume that the frequency factors for the forward elementary steps are comparable. Which choice correctly identifies the rate-determining forward step and the more stable intermediate? • Nerd Notes

AP Chemistry

5.10 Multistep Reaction Energy Profile

5.6 Reaction Energy Profile

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Potential-energy profile for the multistep decomposition.

A student investigates the resin-catalyzed decomposition of a water-treatment byproduct. Spectroscopic evidence supports a mechanism with \(3\) elementary steps and the potential-energy profile shown. The intermediates are labeled \(\text{I}_1\) and \(\text{I}_2\). Assume that the frequency factors for the forward elementary steps are comparable.

Which choice correctly identifies the rate-determining forward step and the more stable intermediate?

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