aZn ZnSO4(): CusO4(c,) Cu OPt H,(p)IH*(C1): Fe3t(c2), Fe2+(c3)Pt 口Cu(s)+Cl2g=Cu2+2Cl Y Cul cu2+:: Cl- Cl Pt 口甘汞电极 Y, Cl2(s)+2e=2Hg+2CI Y CI- Hg Hg, Cl2 Pt8 ❑Zn ZnSO4 (c1 ) CuSO4 (c2 ) Cu ❑Pt H2 (p) H+ (c1 ) Fe3+(c2 ), Fe2+(c3 ) Pt ❑Cu(s)+Cl2 (g)=Cu2++2Cl- ✓Cu Cu2+ Cl- Cl2 Pt ❑甘汞电极 ✓Hg2Cl2 (s)+2e-=2Hg+2Cl- ✓Cl- Hg Hg2Cl2 Pt