H2(g+L2(g)=2H(g [p(hi/pe] K p(H2)/pep(I2)/p°] 对于溶液中的反应: Sn(ag)+2 Fet(ag Sn+(aq)+2Fel(ag K e [c(Sn+/ce ) Ic(Fet/ce) [c(Sn+/ce )Ic(Fe+/ce) 材料工程系化学教研室对于溶液中的反应： H (g) I (g) 2HI(g) 2 + 2 [ (H )/ ][ (I )/ ] [ (HI)/ ] 2 2 2 p p p p p p K = Sn2+(aq)+2Fe3+(aq) Sn4+ (aq)+2Fe2+(aq) 2 3 2 4 2 2 [ (Sn )][ (Fe )] [ (Sn )][ (Fe )] c /c c /c c /c c /c + + + + K =