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Topic 5.9 · Pre-Equilibrium Approximation

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AP Chemistry · Topic 5.9: Pre-Equilibrium ApproximationOpen topic

Practice question

Original PrepAtlas question. This is not an official College Board question.

A + B ⇌ I rapidly establishes pre-equilibrium with concentration ratio K = [I]/([A][B]). The following elementary step I + C → P is slow, with event rate r = k2[I][C]. While pre-equilibrium remains valid, which expression eliminates I using free reactant concentrations?
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