Which of the following is not the characteristic feature of dynamic equilibrium?

Explanation

Dynamic equilibrium is only achieved in closed systems because closed systems do not allow for the exchange of matter with the surroundings. In a closed system, the reactants and products are trapped inside the system, so the only way for the equilibrium to be achieved is for the forward and reverse reactions to occur at the same rate. This means that the concentrations of the reactants and products will remain constant over time.In an open system, however, the reactants and products can be exchanged with the surroundings. This means that the concentrations of the reactants and products can change over time, as the system adjusts to the changes in the surroundings. As a result, dynamic equilibrium can be achieved in an open system, as the forward and reverse reactions will continue to occur, but the concentrations of the reactants and products will not remain constant.