Question

Identify the common property for a chemical reaction at dynamic equilibrium.

• A. The measurable properties like concentration, density, colour, pressure etc remain constant at constant temperature
• B. The forward and backward reactions take place with the same rate
• C. It can be achieved from both directions
• D. All of the above

Answer 1

The correct option is D All of the above

At dynamic equilibrium, the reaction rate of the forward reaction is equal to the reaction rate of the backward reaction. A dynamic equilibrium exists once a reversible reaction ceases to change its ratio of reactants/products, but substances move between the chemicals at an equal rate, meaning there is no net change. It is a particular example of a system in a steady state. Equilibrium is the state of equal, opposite rates, not equal concentrations. The measurable properties like concentration, density, color, pressure etc remain constant at constant temperature.