Question

Consider the following cell reaction: $2Fe(s) + O_2(g) + 4H^+ (aq) \rightarrow 2Fe^{2+} (aq) + 2H_2O(l)$; E° = 1.67V At [Fe²⁺] = 10⁻³ M, p(O₂) = 0.1 atm and pH = 3, the cell potential at 25ºC is
(a) 1.47 V
(b) 1.77 V
(c) 1.87 V
(d) 1.57 V

Answer 1

$<b>$
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$\mathbb{NICE...QUESTION}$

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Consider the following cell reaction: $2Fe(s) + O_2(g) + 4H^+ (aq) \rightarrow 2Fe^{2+} (aq) + 2H_2O(l)$; E° = 1.67V At [Fe²⁺] = 10⁻³ M, p(O₂) = 0.1 atm and pH = 3, the cell potential at 25ºC is
(a) 1.47 V
(b) 1.77 V
(c) 1.87 V
(d) 1.57 V

→ [B]


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Answer 2

Answer :

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Consider the following cell reaction: 2Fe(s) + O_2(g) + 4H^+ (aq) \rightarrow 2Fe^{2+} (aq) + 2H_2O(l); E° = 1.67V At [Fe²⁺] = 10⁻³ M, p(O₂) = 0.1 atm and pH = 3, the cell potential at 25ºC is

(a) 1.47 V  

(b) 1.77 V

(c) 1.87 V  

(d) 1.57 V .

_______________________________-

The correct option is (b) : 1.77 V

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