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Chemical Kinetics & Catalysis

4 terms

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Chemical Kinetics & Catalysis

Second-Order Reaction

A reaction whose rate depends on the square of one concentration or on the product of two concentrations.

1/[A] = 1/[A]₀ + kt L/(mol·s) Chemical Kinetics & Catalysis

Selectivity

The ability of a catalyst to direct a reaction towards one particular product among several possible ones.

selectivity = desired product / total product Dimensionless Chemical Kinetics & Catalysis

Steady-State Approximation

The assumption that the concentration of a reactive intermediate stays essentially constant because it is consumed as fast as it is formed.

d[intermediate]/dt ≈ 0 mol/L Chemical Kinetics & Catalysis

Steric Factor

The fraction of sufficiently energetic collisions that also have the correct spatial orientation for reaction.

p = A / Z Dimensionless