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Using thermodynamic data, estimate the normal boiling point of methanol. (Recall that liquid and vapor are in equilibrium at 1.0 atm pressure at the normal boiling point.) The actual normal boiling point of methanol is 64.7 °C. Compound A,H' (kJ/mol) S* (J/mol · K) CH3OH(2) -238.4 127.19 CH3OH(g) -201.0 239.7 Normal boiling point = °C

Using thermodynamic data, estimate the normal boiling point of methanol. (Recall that liquid and vapor are in equilibrium at 1.0 atm pressure at the normal boiling point.) The actual normal boiling point of methanol is 64.7 °C. Compound A,H' (kJ/mol) S* (J/mol · K) CH3OH(2) -238.4 127.19 CH3OH(g) -201.0 239.7 Normal boiling point = °C

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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**Estimating the Normal Boiling Point of Methanol Using Thermodynamic Data** To estimate the normal boiling point of methanol, we analyze thermodynamic data. Recall that the liquid and vapor are in equilibrium at 1.0 atm pressure at the normal boiling point. The actual normal boiling point of methanol is \(64.7 \, ^\circ \text{C}\). The data provided for the compounds are as follows: | Compound | \( \Delta H^* \) (kJ/mol) | \( S^* \) (J/mol·K) | |-----------|---------------------------|---------------------| | \( \text{CH}_3\text{OH}(l) \) | -238.4 | 127.19 | | \( \text{CH}_3\text{OH}(g) \) | -201.0 | 239.7 | **Calculation:** Calculate the normal boiling point of methanol using the provided enthalpy (\( \Delta H^* \)) and entropy (\( S^* \)) values for liquid and gaseous methanol. **Normal Boiling Point =** \(\boxed{\phantom{0}} \, ^\circ \text{C}\)
Transcribed Image Text:**Estimating the Normal Boiling Point of Methanol Using Thermodynamic Data** To estimate the normal boiling point of methanol, we analyze thermodynamic data. Recall that the liquid and vapor are in equilibrium at 1.0 atm pressure at the normal boiling point. The actual normal boiling point of methanol is \(64.7 \, ^\circ \text{C}\). The data provided for the compounds are as follows: | Compound | \( \Delta H^* \) (kJ/mol) | \( S^* \) (J/mol·K) | |-----------|---------------------------|---------------------| | \( \text{CH}_3\text{OH}(l) \) | -238.4 | 127.19 | | \( \text{CH}_3\text{OH}(g) \) | -201.0 | 239.7 | **Calculation:** Calculate the normal boiling point of methanol using the provided enthalpy (\( \Delta H^* \)) and entropy (\( S^* \)) values for liquid and gaseous methanol. **Normal Boiling Point =** \(\boxed{\phantom{0}} \, ^\circ \text{C}\)
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