Calculate the maximum work that can be obtained from the Daniell cells: `Zn|Zn^(2+)(aq)||Cu^(2+) (aq)|Cu` Given E^(c-)._((Zn^(2+)|Zn))=-0.76V and E^(c-)._((Cu^(2+)|Cu))=0.34V

Explanation

Given: `E^(@) (Zn^(2+)|Zn)= -0.76V, E^(@)= (Cu^(2+)|Cu)= 0.34V`
Overall cell reaciton is `Zn(S) + Cu_((aq))^(2+) rarr Cu(s)+ Zn_((aq))^(2+)`
`E_("cell")^(@)= E_(("Cathode"))^(@)-E_(("Anode"))^(@)`
`=E_((Cu^(2+)|Cu))^(@) - E_((Zn^(2+)|Zn))^(@)`
`=0.34 + 0.76 = 1.10V`
Maximum Work `Delta G^(@)=-n F E_("cell")^(@)`
`Delta G^(@)= -2 xx 96500 xx 1.10`
`Delta G^(@)= -212300 CV`