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A relation connecting reaction rates or equilibrium composition to products of activities with stoichiometric exponents, with its exact status depending on kinetic or thermodynamic formulation.
wp-chem-chemical-thermodynamicsopenstax-chemistry-2eiupac-green-booknist-chemistry-webbookEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Their analysis of reaction data helped move chemical affinity toward a mathematical concentration-dependent law, before modern activity thermodynamics.
The source experiment, observation, anomaly, or problem materially motivated the development, revision, or acceptance of the target concept. Historical influence is not logical derivation; the edge detail states the documented role and avoids retrospective origin myths.
wp-chem-mass-actioniupac-gold-bookEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Thermodynamic mass action expresses equilibrium through activities; kinetic mass action is exact for elementary steps and model-dependent for overall reactions.
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
wp-chem-chemical-thermodynamicsopenstax-chemistry-2eiupac-green-booknist-chemistry-webbookThis is an authored directed relation from the source endpoint to the target endpoint.
Mass-action kinetics gives elementary-step rates proportional to reactant activities or concentrations under its regime; empirical overall reaction orders need not equal stoichiometric coefficients.
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
wp-chem-chemical-thermodynamicsopenstax-chemistry-2eiupac-green-booknist-chemistry-webbook