🧬ap biology review

Transition States

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The transition state in a chemical reaction is a particular configuration along the reaction path. It is defined as the state corresponding to the highest potential energy along this path.

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