what is meant by the term electrochemiacal cell ? given its mechanics by considering zn-cuso4 reaction
Asked by Aakrati Gawande | 26th Mar, 2014, 05:14: PM
Expert Answer:
It is a device used to convert chemical energy into electrical energy.
Consider the following example of piece of zinc (Zn) metal placed in a solution of copper sulfate (CuSO4), where Zn is oxidized to Zn+2 and Cu+2 is reduced to Cu.
Redox equation:
Zn(s) + Cu+2(aq) → Zn+2(aq) + Cu(s)
Anode reaction (Zn electrode): Zn → Zn+2 (aq) + 2e-
Cathode reaction (Cu electrode): Cu+2(aq) + 2e- → Cu(s)
Consider the following example of piece of zinc (Zn) metal placed in a solution of copper sulfate (CuSO4), where Zn is oxidized to Zn+2 and Cu+2 is reduced to Cu.
Redox equation:
Zn(s) + Cu+2(aq) → Zn+2(aq) + Cu(s)
Anode reaction (Zn electrode): Zn → Zn+2 (aq) + 2e-
Cathode reaction (Cu electrode): Cu+2(aq) + 2e- → Cu(s)
Answered by | 27th Mar, 2014, 11:48: AM
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