問題詳情
31. 已知四個半反應及其標準電位依次為： (1) Mg → Mg2＋＋2 e－，E°＝2.37 V(2) Sn → Sn2＋＋2 e－，E°＝1.04 V(3) Cu → Cu2＋＋2 e－，E°＝－0.34 V(4) Ag → Ag＋＋e－，E°＝－0.80 V取此四個半電池配成兩個電池後，再聯成雙電池組，則下列何者正確？
(A)可組成6個電池組
(B)雙電池中Mg必為陽極
(C)可得六種不同標準電壓
(D)最高標準電壓為3.55 V
(E)最低標準電壓為0.87 V
(A)可組成6個電池組
(B)雙電池中Mg必為陽極
(C)可得六種不同標準電壓
(D)最高標準電壓為3.55 V
(E)最低標準電壓為0.87 V
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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