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Secondary Cells

Consider the ...

Question

Consider the cell Cu / Cu^2+ | | Ag^+ / Ag. if the concentration of Cu^2+ and Ag^+ ions becomes ten times the emf of the cell :- (1) Becomes 10 times (2) Remains same (3) Increase by 0.0295 V (4) Decrease by 0.0295 V

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0.1 M

{C u}^{2 +}

{A g}^{+}

C u

A g

0.422 V

C u | C u^{2 +} (1 M) | | A g^{+} (1 M) | A g, E^{o} = 0.46 V

Z n | Z n^{2 +} (1 M) | | C u^{2 +} (1 M) | C u, E^{o} = 1.10 V

Z n | Z n^{2 +} | | A g^{+} (1 M) | A g

C u | C u^{2 +} (1 M) | | A g^{+} (1 M) | A g, E^{0} = 0.46 V

Z n | Z n^{2 +} (1 M) | | C u^{2 +} (1 M) | C u, E^{0} = 1.10 V

Z n | Z n^{2 +} (1 M) | | A g^{+} (1 M) | A g

(E^{\circ})

A g / A g^{+} (1 M) ∥ C u^{2 +} (1 M) | C u; E^{\circ} = - 0.46 v o l t

Z n / Z n^{2 +} (1 M) ∥ C u^{2 +} (1 M) | C u; E^{\circ} = + 1.10 v o l t

Z n | Z n^{2 +} (1 M) ∥ A g^{+} (1 M) | A g

A g | A g^{+} | | C u^{2 +} | C u

2 M A g^{+}

2 M C u^{2 +}

10 amp

4825 sec

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