Question

question 2 of 15
choose the best term to complete the sentence.
equilibrium is ______ at rest.
select an answer from the options below.
a easily
b constantly
c rarely
d frequently

Explanation:

In a chemical equilibrium, the forward and reverse reactions are occurring at the same rate. So, the system is not static (not at rest in the sense of no movement of particles). But on a macroscopic level, the properties of the system (like concentrations of reactants and products) remain constant. So equilibrium is constantly at a state where the macroscopic properties are constant (even though on a microscopic level there is motion).

Answer:

B. constantly