define equilibrium with an aqueous phasewhat are

Question

Define Equilibrium with an Aqueous Phase?

What are the values of C and F in systems consisting of solid AgCl in equilibrium with an aqueous phase containing H₂O, Ag⁺(aq), Cl^-(aq), Na⁺(aq), and NO^-₃ (aq) prepared in the following ways? Give examples of intensive variables that could be varied independently.

(a) The system is prepared by equilibrating excess solid AgCl with an aqueous solution of NaNO₃.

(b) The system is prepared by mixing aqueous solutions of AgNO₃ and NaCl in arbitrary proportions; some solid AgCl forms by precipitation.