How chemists decode the hidden steps of chemical reactions

32. Kinetics: Reaction Mechanisms · 46:28 · Video: MIT OpenCourseWare · Watch at the source

In short: Chemical reactions rarely happen in a single leap. This lecture from MIT OpenCourseWare explores how scientists use experimental rate laws to reconstruct the complex, multi-step pathways that drive chemical change.

In any overall reaction, the process is composed of various steps that differ in speed. This video examines the concept of the rate-determining step—the single slowest stage that dictates the entire reaction's pace. By analyzing the distinction between fast and slow steps, the session demonstrates how to use the steady-state approximation to predict reaction mechanisms.

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