35. 關於電池完全放電的情況,下列哪個選項為正確的描述?
(A) 標準自由能變化(standard Gibbs free energy change) △G° = 0
(B) 自由能變化(Gibbs free energy change) △G = 0
(C) 標準電池電位(standard cell potential) E° = 0
(D) 反應商(reaction quotient) Q = 1
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統計: A(17), B(110), C(10), D(14), E(0) #3420949
統計: A(17), B(110), C(10), D(14), E(0) #3420949
詳解 (共 5 筆)
#6982792
13. 當電池電量耗盡時,下列何者為真?
(A) ΔG° = 0
(B) E° = 0
(C) ΔH° = 0
(D) ΔG = 0
答案:D
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6. Which of the following statements about electrochemical cells is incorrect?
(A) The standard potential (E°)in a concentration cell is zero.
(B) In a concentration cell, the higher ion concentration solution is present at the cathode.
(C) At equilibrium, the standard potential (E°) in a cell is zero.
(D) The cell potential (E)can determine the spontaneity of a cell.
(E) In a concentration cell, decreasing the anode ion concentration will give rise to larger cell potentials.
答案:C
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22. 有關正在使用中的伏打電池 (voltaic cell),下列敘述何者正確?
(A) △G > 0;E = 0
(B) △G < 0;E< 0
(C) △G = 0;E > 0
(D) △G < 0;E > 0
(E) △G > 0;E > 0
答案:D
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