(Solved): 11. What is the equilibrium constant at \( 298 \mathrm{~K} \) for the disproportionation of uranium ...

11. What is the equilibrium constant at \( 298 \mathrm{~K} \) for the disproportionation of uranium(V) in acidic solution as shown below? \[ \begin{array}{l} 2 \mathrm{UO}_{2}^{+}(a q)+4 \mathrm{H}^{+}(a q) \rightleftarrows \\ \mathrm{UO}_{2}^{2+}(a q)+\mathrm{U}^{4}(a q)+2 \mathrm{H}_{2} \mathrm{O}(l) \quad K_{\mathrm{eq}}=? ? ? \end{array} \] (A) \( 1.9 \times 10^{-4} \) (B) 73 (C) 5300 (D) \( 1.9 \times 10^{7} \)