Write Nernst equation for the cell potential of a cell in which the following cell reaction occurs,
`2Cr+3Fe^(2+)rarr 2Cr^(3+)+3Fe.`

Calculate the standard cell potentials of the galvanic cells in which the following reactions take place : 2Cr(s)+3Cd^(2+)(aq)rarr 2Cr^(3+)(aq)+3Cd Calculate Delta_(r )G^(0) , equilibrium constant of the reactions.

Write Nernst equation for electrode potential for the following electrodes : (a) Zn^(2+)+2e rarr Zn

Write Nernst equation for electrode potential for the following electrodes : (b) Fe^(2+)rarr Fe^(3+)+e

Write Nernst equation for electromotive force for Galvanic cell.

Calculate the standard cell potentials of the galvanic cells in which the following reactions take place : Fe^(2+)(aq)+Ag^(+)(aq)rarr Fe^(3+)(aq)+Ag(s) Calculate Delta_(r )G^(0) , equilibrium constant of the reactions.

Depict the galvanic cell in which the cell reaction is Cu+2Ag^(+)rarr 2Ag+Cu^(2+) .

Calculate the standard cell potential of the galvanic cell in which the following reaction takes place: Fe%(2+)(aq)+Ag^(+)(aq)rarrFe^(3+)(aq)+Ag(s) Calculate the Delta_(r)G^(@) and equilibrium constant of the reaction also. (E_(Ag^(+)|Ag)^(@)=0.80V, E_(Fe^(3+)|Fe^(2+))^(@)=0.77V)

Write the Nernst equation for the half cell Zn_((aq))^(2+)//Zn_((s)).

Write the Nernst equation for the cell reaction in the Daniel cell. How will the E_("cell") be affected when concentration of Zn^(2+) ions is increased?