The rusting of iron takes place as follows 2H- 2e- -1-2O2 - H2Ol- E- - -1-23 V Fe2- - 2e- - Fes- E- - -0-44 V Calculate - G- for the net process

[ amp; amp; amp; amp; amp; Fe(s) amp; ⟶ amp; Fe^2+ amp;+ amp; 2e^ ; amp; Δ G_1^∘; ...

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Gibb's Energy and Nernst Equation

The rusting o...

Question

The rusting of iron takes place as follows $2 H^{+} + 2 e^{-} + \frac{1}{2} O_{2} \to H_{2} O (l); E^{\circ} = + 1.23 V$ $F e^{2 +} + 2 e^{-} \to F e (s); E^{\circ} = - 0.44 V$ Calculate $Δ G^{\circ}$ for the net process

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Solution

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2 H^{\oplus} + 2 e^{-} + \frac{1}{2} O_{2} \to H_{2} O (l); E^{⊖} = + 1.23 V

F e^{2 +} (a q) + 2 e^{-} \to F e (s); E^{⊖} = - 0.44 V

Δ G^{⊖}

{2 H}^{\oplus} + 2 e^{-} + \frac{1}{2} O_{2} ⟶ H_{2} O (l); E^{⊙} = + 1.23 V

F e^{2 +} + 2 e^{-} ⟶ F e (s); E^{⊙} = - 0.44 V

Δ G^{⊙}

2 H^{+} + 2 e^{-} + \frac{1}{2} O_{2} \to H_{2} O (l); E^{\circ} = + 1.23 V

F e^{2 +} + 2 e^{-} \to F e (s); E^{\circ} = - 0.44 V

Δ G^{\circ}

2 H^{+} + 2 e^{-} + \frac{1}{2} O_{2} \to H_{2} O (l); E^{o} = + 1.23 V

F e^{2 +} + 2 e^{-} \to F e (s); E^{o} = - 0.44 V

Δ G^{o}

2 H^{+} + 2 e^{-} + \frac{1}{2} O_{2} \to H_{2} O (l); E^{o} = + 1.23 V

F e^{2 +} + 2 e^{-} \to F e (s); E^{o} = - 0.44 V

Δ G^{o}

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