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
10th Edition
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
icon
Concept explainers
Question
**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 =** \(\boxed{\phantom{0}} \, ^\circ \text{C}\)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Thermochemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY