alleryStart learning →Many real systems involve coupled equilibria, meaning two reactions that share:
AAn identical rate constant
BThe same catalyst always
CA reactant or product species
DThe same reaction vessel only
Answer & Solution
Correct answer: C. A reactant or product species
1. A single equilibrium is the simplest case rather than the usual one.
2. Many systems involve two or more coupled equilibrium reactions.
3. Those are reactions which have in common one or more reactant or product species.
4. Sharing a species is what couples them, since changing it moves both equilibria.
5. Three basic manipulations of equations are used to handle such coupled systems.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 13 'Fundamental Equilibrium Concepts', sections 13.1-13.4_
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