A chemical engineer optimizes an industrial reactor where reactant A becomes product B. Which process is responsible for the rate-limiting step during which the transition state intermediate forms?

💡 Explanation

The rate-limiting step forming the transition state involves bond rearrangement within the activated complex, because this requires overcoming the highest energy barrier. Therefore, the reaction rate is determined by the energy required for bond breaking and formation, rather than diffusion or heat transfer limitations.

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