Calculate the pK at 25 degrees C of the following reaction using the data in the table. Use R = 8.314 J/mol/K. 5A +1B + 3C 3D + 5E AHf (kJ/mol) S°(J/mol/K) A 10.02 B -8.60 C 18.90 D 0.15 E 8.82 14.35 17.21 9.87 0.30 6.98

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**Reaction pK Calculation at 25°C**

To calculate the pK of the following reaction at 25 degrees Celsius, use the data provided in the table. The gas constant, R, is given as 8.314 J/mol·K.

**Reaction:**

\[ 5\text{A} + 1\text{B} + 3\text{C} \rightarrow 3\text{D} + 5\text{E} \]

**Thermodynamic Data:**

| Substance | \(\Delta H_f^0\) (kJ/mol) | \(S^0\) (J/mol·K) |
|-----------|-------------------|-----------------|
| A         | 10.02             | 14.35           |
| B         | -8.60             | 17.21           |
| C         | -18.90            | 9.87            |
| D         | 0.15              | 0.30            |
| E         | 8.82              | 6.98            |

**Result:**

The calculated pK value is incorrect: \(1.59 \, \text{(Error)}\). The correct value is \(14.80\).
Transcribed Image Text:**Reaction pK Calculation at 25°C** To calculate the pK of the following reaction at 25 degrees Celsius, use the data provided in the table. The gas constant, R, is given as 8.314 J/mol·K. **Reaction:** \[ 5\text{A} + 1\text{B} + 3\text{C} \rightarrow 3\text{D} + 5\text{E} \] **Thermodynamic Data:** | Substance | \(\Delta H_f^0\) (kJ/mol) | \(S^0\) (J/mol·K) | |-----------|-------------------|-----------------| | A | 10.02 | 14.35 | | B | -8.60 | 17.21 | | C | -18.90 | 9.87 | | D | 0.15 | 0.30 | | E | 8.82 | 6.98 | **Result:** The calculated pK value is incorrect: \(1.59 \, \text{(Error)}\). The correct value is \(14.80\).
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