Essential Chemistry for IGCSE - Chemical Reactions (Section 1 - No. 4)
Which of the following statements is/are true about an equilibrium that is established in a closed system?
The forward and reverse reactions are still occurring.
The concentrations of reactants and products are constant.
No reactants can be added.
The reaction has stopped.
Explanation
At equilibrium, the forward and reverse reactions continue, and concentrations are constant; no reactants can escape the closed system.
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