A cell is represented by Zn- Zn 2- aq - - Cu 2- aq - Cu-Given- Cu 2- - 2e - - Cu- E -0-35V and Zn 2- - 2e - - Zn- E -0-763V- Write the cell reactions- emf of the cell and state whether the cell reaction will be spontaneous or not-

The given cell is Zn| Zn ^ 2+ ( aq ) #160; | | Cu ^ 2+ ( aq ) #160; | Cu Half cell reaction at anode Zn⟶ Zn ^ 2+ +2 e ^ [oxidation]Half cell re ...

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Gibb's Free Energy

A cell is rep...

Question

A cell is represented by
$Z n ∣ ∣ {Z n}^{2 +} (a q) ∣ ∣ ∣ ∣ {C u}^{2 +} (a q) ∣ ∣ C u$ .
Given, ${C u}^{2 +} + {2 e}^{-} ⟶ C u, E^{\circ} = + 0.35 V$ and ${Z n}^{2 +} + {2 e}^{-} ⟶ Z n, E^{\circ} = - 0.763 V$ . Write the cell reactions, emf of the cell and state whether the cell reaction will be spontaneous or not?

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Z n | Z n^{2 +} (a q) (1.0 M) | | C u^{2 +} (a q) (1.0 M) | | C u

0.350

C u^{2 +} (a q) + 2 e^{-} \to C u

- 0.763

Z n^{2 +} (a q) + 2 e^{-} \to Z n

Z n | Z n^{2 +} (a q) (1.0 M) | | C u^{2 +} (a q) (1.0 M) | C u

+ 0.35 V

2 e^{-} + C u^{2 +} (a q) \to C u^{2 +} (a q) (1.0 M) | C u

+ 0.35 V

2 e^{-} + C u^{2 +} (a q) \to C u

- 0.763 V

2 e^{-} + Z n^{2 +} (a q) \to Z n

Z n | Z n^{2 +} | | C u^{2 +} | C u

E_{z n}^{⊖} = 0.736 V; E_{(c u)}^{⊖} = - 0.35 V

E^{\circ}

Z n (s) | Z n^{2 +} 1 M (a q .) ∥ C u^{2 +} 1 M (a q .) | C u (s)

1.10 V

25^{\circ} C

Z n (s) + C u^{2 +} (a q .) ⇌ Z n^{2 +} (a q .) + C u (s)

Z n | Z n^{2 +} (a q) (1.0 M) | | C u^{2 +} (a q) (1.0 M) | | C u

C u^{2 +} (a q) + 2 e^{-} \to C u

Z n^{2 +} (a q) + 2 e^{-} \to Z n

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