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Increase of reaction rate by a substance or active site that participates in a lower-free-energy mechanism and is regenerated in the overall catalytic cycle.
wp-chem-chemical-kineticsopenstax-chemistry-2edoe-catalystsEach relation below ends at this concept.
No direct relations are authored in this direction.
Each relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
A catalyst provides an alternative pathway with different activation barriers without changing the equilibrium free-energy difference; the apparent activation energy can depend on mechanism and conditions.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-chem-chemical-kineticsopenstax-chemistry-2edoe-catalystsThis is an authored directed relation from the source endpoint to the target endpoint.
Heterogeneous catalysis couples surface chemistry to mass and heat transport.
The target is a member or subtype of the broader source class.
wp-chem-chemical-kineticsopenstax-chemistry-2edoe-catalystsThis is an authored directed relation from the source endpoint to the target endpoint.
Homogeneous catalysis is classified by catalyst and reactants sharing a phase.
The target is a member or subtype of the broader source class.
wp-chem-chemical-kineticsopenstax-chemistry-2edoe-catalystsThis is an authored directed relation from the source endpoint to the target endpoint.
A catalytic mechanism models an alternative reaction cycle that regenerates catalyst and changes accessible kinetic pathways; the proposed steps require independent kinetic and structural evidence.
The target is a model, idealization, restricted ansatz, approximation scheme, phenomenological fit, or historical representation used for the source system or theory. It need not have a universal small error parameter and is not thereby a controlled limit or effective theory. The edge label and detail must identify the precise status.
wp-chem-chemical-kineticsopenstax-chemistry-2edoe-catalysts