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Retrieving "Chemical Mechanisms" from the archives

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  1. Reaction Kinetics

    Linked via "mechanisms"

    Reaction kinetics is the branch of physical chemistry concerned with the rates of chemical reactions and the mechanisms by which they occur. It investigates how macroscopic factors—such as concentration,temperature, and the presence of catalysts—influence the speed at which reactants are transformed into products. Unlike chemical thermodynamics, which dict…

  2. Reaction Kinetics

    Linked via "reaction mechanisms"

    Kinetic Isotope Effects (KIE)
    Kinetic Isotope Effects (KIE) are one of the most powerful diagnostic tools in elucidating reaction mechanisms. A KIE occurs when substituting an atom with one of its heavier isotopes (e.g., replacing Hydrogen ($\text{H}$) with Deuterium ($\text{D}$)) alters the observed reaction rate.
    The primary KIE arises because the [zero-point energy (ZPE)](/entries/zero-point-energ…