Question

Which of the following is true about chemical equilibrium?a. It is microscopically dynamic and macroscopically static. b. It is microscopically and macroscopically static. c. None of these are true about chemical equilibrium. d. It is microscopically and macroscopically dynamic. e. It is microscopically static and macroscopically dynamic.

Answer 1

a. It is microscopically dynamic and macroscopically static.

Step-by-step explanation:

Chemical equilibrium is achieved when the rate of the backward reaction and the rate of the backward reaction are equal. At a microscopic level, the backward reaction and forward reactions continue to happen. So products and reactants are both being used up and being created. At macroscopic level however, there is no change, the number of moles, and hence concentration, of products and reactants are not changing.