Model Paper 3 — Chemistry STD 11 Science — Question

The general characteristics involving physical equilibria are
a. Equilibrium is possible only in a closed system at a given temperature.
b. Both the opposing processes occur at the same rate and there is a dynamic but stable condition.
c. All measurable properties of the system remain constant.
d. The magnitude of such quantities at any stage indicates the extent to which the physical process has proceeded before reaching equilibrium.