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Equilibrium Constant from Nernst Equation

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Question

From the standard electrode potential values of the electrodes given select an option representing their decreasing order discharge potential:
$(a) A, E^{o} = 2.32 V$ $(b) B, E^{o} = 1.36 V$
$(c) C, E^{o} = 1.07 V$ $(c) D, E^{o} = 0.43 V$

A

a c b d

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B

a b c d

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C

a d b c

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D

a b d c

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Solution

The correct option is D $a b c d$
The more positive the potential is the more likely it will be discharged. Thus decreasing order discharge potential would be $a b c d$ .
$(a) A, E^{o} = 2.32 V$ $(b) B, E^{o} = 1.36 V$
$(c) C, E^{o} = 1.07 V$ $(d) D, E^{o} = 0.43 V$

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Similar questions

Q. Pairs of electrodes and their corresponding standard electrode potentials are given. Arrange the cells constructed by these electrodes in increasing order of emf values.

(a) E l e c t r o d e \to A, E^{o} = - 2.92 V

E l e c t r o d e \to B, E^{o} = - 2.71 V

(b) E l e c t r o d e \to C, E^{o} = - 0.760 V

E l e c t r o d e \to D, E^{o} = - 0.44 V

(c) E l e c t r o d e \to B, E^{o} = - 2.71 V

E l e c t r o d e \to D, E^{o} = - 0.44 V

(d) E l e c t r o d e \to A, E^{o} = - 2.92 V

E l e c t r o d e \to C, E^{o} = - 0.76 V

Q. The standard electrode potentials of the electrodes are given below. Arrange them in decreasing order of ease of oxidation:

(a) E l e c t r o d e - I, E^{o} = - 2.89 V

(b) E l e c t r o d e - I I, E^{o} = - 0.16 V

(c) E l e c t r o d e - I I I, E^{o} = 0.77 V

(d) E l e c t r o d e - I V, E^{o} = - 2.93 V

(e) E l e c t r o d e - V, E^{o} = - 1.67 V

Q. Given standard electrode potentials :

{F e}^{3 +} + {3 e}^{-} ⟶ F e; E^{o} = - 0.036 v o l t

{F e}^{2 +} + {2 e}^{-} ⟶ F e; E^{o} = - 0.440 v o l t

The standard electrode potential

E^{o}

{F e}^{3 +} + e^{-} ⟶ {F e}^{2 +}

Q. Given, standard electrode potentials,

F e^{2 +} + 2 e^{-} \to F e, E^{o} = - 0.440

F e^{3 +} + 3 e^{-} \to F e, E^{o} = - 0.036

The standard electrode potential

(E^{o})

F e^{3 +} + e^{-} \to F e^{2 +}

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⟶

F e; E^{o} = - 0.440 V

F e^{3 +} + 3 e^{-}

⟶

F e; E^{o} = - 0.036 V

The standard electrode potential

(E^{o}

F e^{3 +} + e^{-}

\to

F e^{2 +}

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