Order the compounds below from least to most thermodynamically stable (relative to their constituent elements) at 25°C. (least stable) name acetylene carbon dioxide formula AG; (1) mol C₂H₂(g) 209.2 CO₂(g) -394.4 nitrogen dioxide NO₂(g) (most stable) 51.3

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**Question 6**

Order the compounds below from least to most thermodynamically stable (relative to their constituent elements) at 25°C.

| Name             | Formula    | \( \Delta G_f^\circ \) (kJ/mol) |
|------------------|------------|----------------------------|
| Acetylene        | C\(_2\)H\(_2\)(g)  | 209.2                      |
| Carbon Dioxide   | CO\(_2\)(g)       | -394.4                     |
| Nitrogen Dioxide | NO\(_2\)(g)       | 51.3                       |

(least stable) [ ___ ] < [ ___ ] < [ ___ ] (most stable)

**Explanation:**
- The table provides the standard Gibbs free energy of formation (\( \Delta G_f^\circ \)) for each compound at 25°C. 
- A more negative value indicates greater thermodynamic stability relative to the constituent elements. 
- Arrange the compounds by increasing stability using the provided Gibbs free energy values.
Transcribed Image Text:**Question 6** Order the compounds below from least to most thermodynamically stable (relative to their constituent elements) at 25°C. | Name | Formula | \( \Delta G_f^\circ \) (kJ/mol) | |------------------|------------|----------------------------| | Acetylene | C\(_2\)H\(_2\)(g) | 209.2 | | Carbon Dioxide | CO\(_2\)(g) | -394.4 | | Nitrogen Dioxide | NO\(_2\)(g) | 51.3 | (least stable) [ ___ ] < [ ___ ] < [ ___ ] (most stable) **Explanation:** - The table provides the standard Gibbs free energy of formation (\( \Delta G_f^\circ \)) for each compound at 25°C. - A more negative value indicates greater thermodynamic stability relative to the constituent elements. - Arrange the compounds by increasing stability using the provided Gibbs free energy values.
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