The following table contains thermodynamic data that may be helpful to answer th...
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The following table contains thermodynamic data that may be helpful to answer the following TWO questions. (Note this is not the true values for these parameters.)
| Substance | ΔfH⦵ (kJ mol–1) | ΔS⦵ (J K–1 mol–1) |
| O(g) | 247.5 | 161 |
| O3(g) | 142.3 | 205 |
| O2(g) | 0 | 239 |
- Consider the dissociation of O3(g) to O2(g) + O(g) in the absence of light. The standard entropy of the reaction at 298 K is J K–1 mol–1 while the standard Gibbs free energy at 298 K is kJ mol–1. [2 marks]
- This reaction be spontaneous in the absence of light. The spontaneity of the reactionincrease with temperature. [2 marks]
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