(a) Write the equations for the reactions taking place at anode and cathode in the lead-storage battery. Calculate the value of DeltarG^(0)at 298 K for the cell reaction. 3Mg_(s) + 2Al^(3+)_(aq) to 3Mg^(2+)_(aq) + 2Al_(s)[Given , E_(mg)^(0) = -2.36V,E_(Al)^(0) = -1.66Vand F = 96487 C]

(a) Write the equations for the reactions taking place at anode and ca

1.	(a) Write the equations for the reactions taking place at anode and cathode in the lead-storage battery. Calculate the value of DeltarG^(0)at 298 K for the cell reaction. 3Mg_(s) + 2Al^(3+)_(aq) to 3Mg^(2+)_(aq) + 2Al_(s)[Given , E_(mg)^(0) = -2.36V,E_(Al)^(0) = -1.66Vand F = 96487 C]
Answer» Solution :(a)It is secondary cell mainly used in auto mobiles. ANODE:Lead Cathode:Gride of lead packed with `PbO_(2)` Electrolyte:38% sulphuric ACID Cell reactions: Anode:`Pb(s) + SO_(4)^(2-)(aq) rarr PbSO_(4)(s) + 2e^(-)` Cathode:: `PbO_(2)(s)+SO^(2-)(4)(aq)+4H^(+)+2e^(-) rarr PbSO(4)(s)+2H_(2)O` OVERALL reaction:`Pb(s)+PbO_(2)(s)+2H_(2)SO_(4)(aq) rarr 2PbSO_(4)(s)+2H_(2)O(l)` (b) `E^(0)(cell)=E^(0)(Al^(+3)/Al)-E^(0)_(Mg^(+2)/Mg)` =+0.7V `DELTAG^(0)=-nFE^(0)_(cell)` = -6xx 96487xx0.7