Question

Eθ（Cu2+/Cu）= 0.337V,Eθ（Cu2+/Cu+）= 0.153V,Kθsp (CuCl)=1.2×10-

Answer 1

E(cu2+/cuI)=E(cu2+/cu+)+0.059/n*lg [cu2+/cu+]

E=0.17+0.059lg[1/ksp(cuI)]

E=0.54

故能自发进行.

lgk=nE/0.059 n=1

k=1.42*10^9