---
title: "A galvanic cell operates at \\(298\\text{ K}\\) according to the overall reaction represented below.  \\[ \\text{Sn(s)} + 2\\,\\text{Ag}^+\\text{(aq)} \\rightleftharpoons \\text{Sn}^{2+}\\text{(aq)} + 2\\,\\text{Ag(s)} \\]  The standard reduction potentials for the relevant half-reactions are given in the table.  | Half-Reaction | \\(E^\\circ\\text{ (V)}\\) | | :— | :— | | \\(\\text{Ag}^+\\text{(aq)} + e^- \\rightarrow \\text{Ag(s)}\\) | \\(+0.80\\) | | \\(\\text{Sn}^{2+}\\text{(aq)} + 2\\,e^- \\rightarrow \\text{Sn(s)}\\) | \\(-0.14\\) |  Which of the following correctly identifies the sign of \\(\\Delta G^\\circ\\) and the magnitude of the equilibrium constant, \\(K\\), for the overall reaction at \\(298\\text{ K}\\)?"
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url: "https://nerd-notes.com/ubq/123937/"
date_modified: "2026-09-28T12:32:20+00:00"
---

# A galvanic cell operates at \(298\text{ K}\) according to the overall reaction represented below.

\[ \text{Sn(s)} + 2\,\text{Ag}^+\text{(aq)} \rightleftharpoons \text{Sn}^{2+}\text{(aq)} + 2\,\text{Ag(s)} \]

The standard reduction potentials for the relevant half-reactions are given in the table.

| Half-Reaction | \(E^\circ\text{ (V)}\) |
| :— | :— |
| \(\text{Ag}^+\text{(aq)} + e^- \rightarrow \text{Ag(s)}\) | \(+0.80\) |
| \(\text{Sn}^{2+}\text{(aq)} + 2\,e^- \rightarrow \text{Sn(s)}\) | \(-0.14\) |

Which of the following correctly identifies the sign of \(\Delta G^\circ\) and the magnitude of the equilibrium constant, \(K\), for the overall reaction at \(298\text{ K}\)?

A galvanic cell operates at \(298\text{ K}\) according to the overall reaction represented below.

\[ \text{Sn(s)} + 2\,\text{Ag}^+\text{(aq)} \rightleftharpoons \text{Sn}^{2+}\text{(aq)} + 2\,\text{Ag(s)} \]

The standard reduction potentials for the relevant half-reactions are given in the table.

| Half-Reaction | \(E^\circ\text{ (V)}\) |
| :--- | :--- |
| \(\text{Ag}^+\text{(aq)} + e^- \rightarrow \text{Ag(s)}\) | \(+0.80\) |
| \(\text{Sn}^{2+}\text{(aq)} + 2\,e^- \rightarrow \text{Sn(s)}\) | \(-0.14\) |

Which of the following correctly identifies the sign of \(\Delta G^\circ\) and the magnitude of the equilibrium constant, \(K\), for the overall reaction at \(298\text{ K}\)?

- **A.** \(\Delta G^\circ < 0\) and \(K > 1\)
- **B.** \(\Delta G^\circ < 0\) and \(K < 1\)
- **C.** \(\Delta G^\circ > 0\) and \(K > 1\)
- **D.** \(\Delta G^\circ > 0\) and \(K < 1\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/123937/*