Gibb's Energy...

Gibb's Energy and Nernst Equation

Trending Questions

- 34336 J
- 212300 J
- 56000 J
- 89000 J

The electrical work done during the reaction at 298 K:
$2 H g_{(l)} + C l_{2 (g)} \to H g_{2} C l_{2 (s)}, i s G i v e n t h a t E_{\frac{C l_{2}}{C l^{-}}}^{\circ} = 1.36 V; E_{\frac{H g_{2} C l_{2}}{H g, C l^{-}}}^{\circ} = 0.27 V; P_{C l_{2}} = 1 a t m,$

$210.37 k J m o l^{- 1}$
$420.74 k J m o l^{- 1}$
$105.185 k J m o l^{- 1}$
$110.37 k J m o l^{- 1}$

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Electra is almost bored now. Stupid Nernst making her solve so many problems.

But wait, this is her last one. If she completes this, she is through as an apprentice!
Quick. Tell her what is the Gibb's energy of a Daniel Cell.
Use

F = 96487 C m o l^{- 1}

$21.227 k J m o l^{- 1}$
$21.227 m J m o l^{- 1}$
$21.227 J m o l^{- 1}$
$21.227 m o l^{- 1}$

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Q. Electra - "Hmm, this looks tricky"

At

25^{\circ} C

C r^{3 +} + e^{-} \to C r^{2 +}, g i v e n E^{0} = - 0.424 V C r^{2 +} + 2 e^{-} \to C r (s), g i v e n E_{0} = - 0.9 V F i n d E^{0} a t 25^{\circ} C f o r C r^{3 +} (a q) + 3 e^{-} \to C r (s)

Electra was completely stumped. Seems like you need a way to add electrode potentials. Please tell her the answer.

0.741 V
- 0.741 V
-0.476 V
-1.324 V

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Q. Rust is a mixture of

$F e O$ and $F e_{3} O_{4}$
$F e O$ and $F e (O H)_{3}$
$F e_{2} O_{3}$ and $F e (O H)_{3}$
$F e (O H)_{3}$ and $F e_{3} O_{4}$

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Q. You have brushed the wall with an aqueous suspension of

C a (O H)_{2}

after two days the wall turned to white color.
What are the steps involved in white washing the walls. Write the necessary balanced chemical equations using the appropriate symbols.

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