Chemical Kinetics & Catalysis

The process by which a reaction rate is increased through the action of a catalyst.

Dimensionless

A substance that increases the rate of a reaction by providing an alternative pathway of lower activation energy, without being consumed.

Dimensionless

Chemical Kinetics & Catalysis

The loss of catalytic activity caused by a substance binding irreversibly to the active sites.

Dimensionless

Chemical Kinetics & Catalysis

A self-sustaining reaction sequence in which a reactive intermediate regenerates itself at each cycle.

initiation → propagation → termination Dimensionless

Chemical Kinetics & Catalysis

The study of reaction rates, the factors that influence them, and the step-by-step mechanisms by which reactions occur.

mol/(L·s)

Chemical Kinetics & Catalysis

Strong adsorption in which actual chemical bonds form between the adsorbate and the surface.

ΔH ≈ −80 to −400 kJ/mol kJ/mol

Chemical Kinetics & Catalysis

The number of collisions occurring per unit volume per unit time in a reacting mixture.

Z ∝ n²σ√T s⁻¹

Chemical Kinetics & Catalysis

The model that explains reaction rates in terms of the frequency, energy and orientation of collisions between reacting particles.

rate = pZ e^(−Ea/RT) mol/(L·s)

Chemical Kinetics & Catalysis

An overall reaction that proceeds through two or more elementary steps.

Dimensionless