The potential of hydrogen electrode in contact with a solution with pH =10, is:

The cell in which the following reactions occurs:

2Fe³⁺_(aq)+2I^-_(aq)→2Fe²⁺_(aq)+I_2(s) has \(E_{cell}^{o}\)= 0.236 V at 298 K.

The standard Gibbs energy of the cell reaction is -

1.   41.14 kJ mol⁻¹
2.   45.54 kJ mol⁻¹
3. −49.94 kJ mol⁻¹
4. −45.54 kJ mol⁻¹

 

The cell in which the following reactions occurs:

2Fe³⁺_(aq)+2I^-_(aq)→2Fe²⁺_(aq)+I_2(s) has \(E_{cell}^{o}\)= 0.236 V at 298 K.

The standard Gibbs energy of the cell reaction is −45.54 kJ mol⁻¹ . The value of equilibrium constant  of the cell reaction is