$H_{2(g)} + 2 AgCl_{(s)} \rightleftharpoons 2 Ag_{(s)} + 2 HCl_{(aq)}$. The $E^{\circ}_{cell}$ at $25^{\circ} C$ for the cell is $0.22 \ V$. The equilibrium constant at $25^{\circ} C$ is
- A$2.8 \times 10^{7}$
- B$5.2 \times 10^{8}$
- C$2.8 \times 10^{5}$
- D$5.2 \times 10^{4}$
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