The standard emf of the cell- Cds-CdCl2aq0-1 M-AgClaq-Ags-In which the cell reaction is Cds-2AgCls- 2Ags-Cd2-aq-2Cl-aq is 0-6915 V at 0oC and 0-6573 V at 25oC- The enthalpy change of the reaction at 25oC is-

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The standard ...

Question

The standard emf of the cell, $C d_{(s)} | C d C l_{2 (a q)} (0.1 M) | | A g C l_{(a q)} | A g_{(s)}$ .

In which the cell reaction is $C d_{(s)} + 2 A g C l_{(s)} \Rightarrow 2 A g_{(s)} + C d_{(a q)}^{2 +} + 2 C l_{(a q)}^{-}$ is $0.6915 V$ at $0^{o} C$ and $0.6573$ $V$ at $25^{o} C$ .

The enthalpy change of the reaction at $25^{o} C$ is:

+ 48.179 k J

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- 234.7 k J

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+ 0.28 k J

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- 167.26 k J

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Similar questions

C d (s) / C d C l_{2} (a q) (0.1 M) | | A g C l (s) | A g (s)

C d (s) + 2 A g C l (s) \to 2 A g (s) + C d^{2 +} (a q) + 2 C l^{-} (a q)

0.6915

273

0.6573

298

298

C d (s) | C d C l_{2} (a q, 0.1 M) | | A g C l (s) | A g (s)

C d (s) + 2 A g C l (s) \to 2 A g (s) + C d^{2 +} (a q) + 2 C l^{-} (a q)

0.6915 V

0.6753 V

Δ S

Δ H

F = 96485 C m o l^{- 1}

H_{2} (g) + 2 A g C l (s) \to 2 A g (s) + 2 H^{+} (a q .) + 2 C l^{-} (a q .)

- 10.26 k c a l m o l^{- 1}

25^{\circ} C

25^{\circ} C

P_{H_{2}} = 1 a t m . [H^{+}]

[C l^{-}] = 0.1

Δ G^{0} = - 42927

25^{0} C

H_{2} (g, 1 a t m) + 2 A g C l (s) ⇌ 2 A g (s) + 2 H^{+} (a q, 0.1 M) + 2 C l^{-} (a q, 0.1 M)

10.26 k c a l m o l^{- 1}

25^{\circ} C .

H_{2} (g) + 2 A g C l (s) \to 2 A g (s) + 2 H^{+} (a q) + 2 C l^{-} (a q)

25^{\circ} C

P_{H_{2}} = 1 a t m

[H^{+}] and [C l^{-}] = 0.1 M

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