Question

Select the correct equilibrium involving physical equilibrium.

(a) it is possible only in a closed system at a given temperature

(b) both forward and backward does not occur at the same rate

(c) there is a dynamic but an unstable condition

(d) measurable properties of the system do not remain constant

This question was addressed to me in a national level competition.

The origin of the question is Equilibrium in Physical Processes topic in portion Equilibrium of Chemistry – Class 11

Answer 1

Right option is (a) it is possible only in a closed system at a given temperature

The explanation is: The corrected statements of the wrong ones are that both backward and forward reactions occur at the same rate in a stable condition, while the measurable properties of the system remain constant.