---
title: "The oxidation of carbon monoxide gas is represented by the following balanced equation:  \\[ 2\\,\\text{CO}(g) + \\text{O}_2(g) \\rightarrow 2\\,\\text{CO}_2(g) \\]  Thermodynamic data for the substances involved in the reaction are provided in the table below.  | Substance | \\(S^\\circ\\ (\\text{J}/(\\text{mol}\\cdot\\text{K}))\\) | | :— | :— | | \\(\\text{CO}(g)\\) | \\(198\\) | | \\(\\text{O}_2(g)\\) | \\(205\\) | | \\(\\text{CO}_2(g)\\) | \\(214\\) |  Based on the information in the table, what is the value of \\(\\Delta S^\\circ_{\\text{rxn}}\\) for the reaction?"
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date_modified: "2026-08-23T05:04:43+00:00"
---

# The oxidation of carbon monoxide gas is represented by the following balanced equation:

\[ 2\,\text{CO}(g) + \text{O}_2(g) \rightarrow 2\,\text{CO}_2(g) \]

Thermodynamic data for the substances involved in the reaction are provided in the table below.

| Substance | \(S^\circ\ (\text{J}/(\text{mol}\cdot\text{K}))\) |
| :— | :— |
| \(\text{CO}(g)\) | \(198\) |
| \(\text{O}_2(g)\) | \(205\) |
| \(\text{CO}_2(g)\) | \(214\) |

Based on the information in the table, what is the value of \(\Delta S^\circ_{\text{rxn}}\) for the reaction?

The oxidation of carbon monoxide gas is represented by the following balanced equation:

\[ 2\,\text{CO}(g) + \text{O}_2(g) \rightarrow 2\,\text{CO}_2(g) \]

Thermodynamic data for the substances involved in the reaction are provided in the table below.

| Substance | \(S^\circ\ (\text{J}/(\text{mol}\cdot\text{K}))\) |
| :--- | :--- |
| \(\text{CO}(g)\) | \(198\) |
| \(\text{O}_2(g)\) | \(205\) |
| \(\text{CO}_2(g)\) | \(214\) |

Based on the information in the table, what is the value of \(\Delta S^\circ_{\text{rxn}}\) for the reaction?

- **A.** \(-189\text{ J}/(\text{mol}_{\text{rxn}}\cdot\text{K})\)
- **B.** \(-173\text{ J}/(\text{mol}_{\text{rxn}}\cdot\text{K})\)
- **C.** \(+173\text{ J}/(\text{mol}_{\text{rxn}}\cdot\text{K})\)
- **D.** \(+189\text{ J}/(\text{mol}_{\text{rxn}}\cdot\text{K})\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/121467/*