Respuesta :
The lead (Pb) in the lead storage battery act as an anode
What is Voltaic Cell?
A voltaic cell or galvanic cell is an electrochemical cell that uses chemical reactions to produce electrical energy.
Parts of voltaic cell
- Anode where oxidation occurs
- Cathode where reduction occurs
In lead storage battery, the following reactions occur:
At anode:
[tex]Pb(s) + H_2SO_{4} + H_2O(l) \rightarrow2e^- + PbSO_{4} (s) + H_3O^+(aq)[/tex]
At Cathode:
[tex]PbO_2(s) + H_2SO_4(aq) + 3H_3O+(aq) + 2e^- \rightarrow PbSO_4(s) + 5H_2O(l)[/tex]
Overall reaction:
[tex]Pb(s) + PbO_2(s) + 2H_2SO_4 (aq.) \rightarrow PbSO_4(s) + 2H_2O(l)[/tex]
Hence, Pb acts as an anode and [tex]PbO_2[/tex] as a cathode.
Learn more about voltaic cell:
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