本题目来源于试卷: Mechanisms of Chemical Change F.2 Electron Transfer Reactions,类别为 IB化学
[单选题]
Which of the followigov):jgo b,;h, kcqy4wsd 757uk0u *0 hwpcobng statements are correct?
I.Voltaic cells convert chemical energy into electrical energy
II.Electrolytic cells convert electrical energy into chemical energy
III.Electrolytic cells require a salt bridge
A. I and II only
B. I and III only
C. II and III only
D. I, II, and III
参考答案: A
本题详细解析:
Spontaneous reactions occur in voltaic cells converting chemical energy to eleig:san/ zl.j(o/pt24wrguwr4t j : i,ctrical jnr4l: iwj/.:rp , ta(z2is g4 otuwg/energy, whereas, non-spontaneous reactions occur in electrolytic cells requiring electrical energy and converting this to chemical energy.
Electrolytic cells typically consist of one reaction vessel containing the aqueous of molten electrolyte. No salt bridge is therefore required.
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