一道物化题,用Pt电极电解SnCl2水溶液,在阴极因H2有超电势故先析出Sn(s),在阳极上析出O2气,已知:a(Sn2+)=0.10,a(H+)=0.01,氧在阳极上析出的超电势为0.3V,已知Φ（标)Sn2+,Sn=-0.140V,Φ（

Question

一道物化题,
用Pt电极电解SnCl2水溶液,在阴极因H2有超电势故先析出Sn(s),在阳极上析出O2气,已知:a(Sn2+)=0.10,a(H+)=0.01,氧在阳极上析出的超电势为0.3V,已知Φ（标)Sn2+,Sn= -0.140V,Φ（标)O2,H2O,H+= 1.23V,则此电池的实际分解电压= ( 1.782V ).
那个1.612 算出来好像不是这个值吧？

Answer 1