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Determine the standard entropy change ΔSorxn  for the following reaction        CH3OH (l) + O2 (g)  --> CO2 (g) + 2H2O (g)

Determine the standard entropy change ΔSorxn  for the following reaction        CH3OH (l) + O2 (g)  --> CO2 (g) + 2H2O (g)

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Determine the standard entropy change ΔSorxn  for the following reaction

       CH3OH (l) + O2 (g)  --> CO2 (g) + 2H2O (g)          

 

The table below presents the standard molar entropy values for various substances, measured in joules per mole per Kelvin (J/mol × K). | **Substance** | **S° (J/mol × K)** | |---------------|---------------------| | H₂O(g) | 232.7 | | CO₂(g) | 213.8 | | CH₃OH(l) | 126.8 | | O₂(g) | 205.0 | ### Explanation: - **H₂O(g)**: Water in its gaseous state has a standard molar entropy of 232.7 J/mol × K. - **CO₂(g)**: Carbon dioxide gas has a standard molar entropy of 213.8 J/mol × K. - **CH₃OH(l)**: Methanol in its liquid state has a standard molar entropy of 126.8 J/mol × K. - **O₂(g)**: Oxygen gas has a standard molar entropy of 205.0 J/mol × K. These values help in understanding the disorder or randomness associated with these substances in their respective states.
Transcribed Image Text:The table below presents the standard molar entropy values for various substances, measured in joules per mole per Kelvin (J/mol × K). | **Substance** | **S° (J/mol × K)** | |---------------|---------------------| | H₂O(g) | 232.7 | | CO₂(g) | 213.8 | | CH₃OH(l) | 126.8 | | O₂(g) | 205.0 | ### Explanation: - **H₂O(g)**: Water in its gaseous state has a standard molar entropy of 232.7 J/mol × K. - **CO₂(g)**: Carbon dioxide gas has a standard molar entropy of 213.8 J/mol × K. - **CH₃OH(l)**: Methanol in its liquid state has a standard molar entropy of 126.8 J/mol × K. - **O₂(g)**: Oxygen gas has a standard molar entropy of 205.0 J/mol × K. These values help in understanding the disorder or randomness associated with these substances in their respective states.
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