12. Evaluate the feasibility of the reaction: . Given and . — Electrochemistry Chemistry Question
Question
12. Evaluate the feasibility of the reaction: $Sn(s) + 2Fe^{3+}(aq) \rightarrow 2Fe^{2+}(aq) + Sn^{2+}(aq)$. Given $E^\circ(Fe^{3+}/Fe^{2+}) = +0.77 V$ and $E^\circ(Sn^{2+}/Sn) = -0.14 V$.
Answer: A
💡 Solution & Explanation
Oxidation (Anode): Sn. Reduction (Cathode): Fe3+. $E^\circ_{cell} = E^\circ_{cathode} - E^\circ_{anode} = 0.77 - (-0.14) = 0.91 V$. Since $E^\circ > 0$, the reaction is spontaneous.
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