Retrieving "Reaction Rate Constant" from the archives

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1. Arrhenius Equation

   Linked via "reaction rate constant"

   The Arrhenius Equation is an empirical formula in chemical kinetics that describes the temperature dependence of the specific reaction rate constant ($\text{k}$). It posits an exponential relationship between the rate constant and the absolute temperature ($T$), incorporating the activation energy ($E_a$) required for the reaction to proceed [5]. While fundamentally rooted…

2. Bimolecular Reaction

   Linked via "reaction rate constant"

   $$k{obs} = kd \cdot \frac{kr}{kd + k_r}$$
   Where $kd$ is the diffusion-controlled rate constant (how fast they separate from the cage) and $kr$ is the true intrinsic reaction rate constant. If $kr \gg kd$, the reaction is diffusion-limited. If $kr \ll kd$, the reaction is activation-limited. In highly viscous media, the diffusion constant $D$ is related to the [viscosity](/entries…