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Chemical Kinetics & Catalysis

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Chemical Kinetics & Catalysis

Rate Constant

The proportionality constant in a rate law, characteristic of a given reaction at a given temperature.

k = A e^(−Ea/RT) Various Chemical Kinetics & Catalysis

Rate Law

An experimentally determined equation expressing reaction rate as a function of reactant concentrations.

rate = k[A]^m[B]^n mol/(L·s) Chemical Kinetics & Catalysis

Rate-Determining Step

The slowest step in a reaction mechanism, which limits the overall rate.

Dimensionless Chemical Kinetics & Catalysis

Reaction Intermediate

A species produced in one step of a mechanism and consumed in a later one, so it does not appear in the overall equation.

mol/L Chemical Kinetics & Catalysis

Reaction Mechanism

The detailed sequence of elementary steps by which reactants are converted into products.

Dimensionless Chemical Kinetics & Catalysis

Reaction Rate

The change in concentration of a reactant or product per unit time.

rate = −Δ[A]/(aΔt) = Δ[P]/(pΔt) mol/(L·s)