What type of battery is the lead storage battery?

(a) A lead storage battery is a secondary cell so we can charge the battery by passing current directly. So, it can be reused.At anode:Pb+SO₄²⁻→PbSO₄+2e⁻At cathode:PbO₂+SO₄²⁻+4H⁺+2e⁻→PbSO₄+2H₂OOverall reaction:Pb+PbO₂+2SO₄²⁻+4H⁺+2e⁻→PbSO₄+2H₂O(b) From the given reaction, it is known that zinc is oxidised and silver is reduced in the button cell.The reactions occuring at the anode and cathode are:Anode :Zn(s)→Zn²⁺(aq)+2e⁻Cathode :Ag₂O(s)+H₂O(i)+2e⁻→2Ag(s)+2OH⁻(aq)Now,E⁰cell=E⁰cathode−E⁰anode=E⁰Ag⁺/Ag−E⁰Zn²⁺/Zn=0.80−(−0.6)=1.56VWe know thatΔrG⁰=−nE⁰FHere,n=2F=96500Cmol⁻¹ΔrG⁰=−2×1.56×96500Jmol⁻¹=−301080Jmol⁻¹