设计电池:正极:Al3+ + 3e- =Al -1.662V负极:[Al(OH)4]- + 3e-= Al + 4OH- -2.330V总反应(即正极减负极): Al3+ + 4OH- =[Al(OH)4]-lgKθ =n*Eθ /0.0591v =3*[(-1.662V) - (-2.330V)]/0.0591v =33.91Kθ =8.1*10^33即得K稳θ ,也是β4θ