Question

which of these is a condition for dynamic equilibrium? the reaction must stop reacting when concentrations stop changing. the concentration of reactants must equal the concentration of the products. the reaction must be reversible (can go forward and backward).

Explanation:

To determine the condition for dynamic equilibrium, we analyze each option:

• The first option is incorrect because in dynamic equilibrium, the reaction does not stop; the forward and reverse reactions occur at the same rate, so concentrations remain constant while reactions continue.
• The second option is incorrect because at dynamic equilibrium, the concentrations of reactants and products are constant but not necessarily equal.
• The third option is correct because dynamic equilibrium requires a reversible reaction (able to proceed in both forward and reverse directions) with equal forward and reverse reaction rates.

Answer:

The reaction must be reversible (can go forward and backward).