題組內容

5. pE-pH diagram is a useful tool to predict chemical state of species in water. The following figure is a typical pE-pH diagram for iron in water at the total soluble iron concentration of 1 x61c025fd6c44c.jpg M.
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(B) Please describe the electrochemical meaning of two dash lines in pE-pH diagram and explain the origin of slope of those dash lines. (5%)