Consider the reaction: 2H2 (g) + O2(g) → 2H₂O(g) Using standard thermodynamic data at 298 K, calculate the free energy change when 1.87 moles of H₂ (g) react at standard conditions. Substance AG (kJ/mol) H₂O(g) H₂(g) O₂ (g) -228.6 0.0 0.0
Consider the reaction: 2H2 (g) + O2(g) → 2H₂O(g) Using standard thermodynamic data at 298 K, calculate the free energy change when 1.87 moles of H₂ (g) react at standard conditions. Substance AG (kJ/mol) H₂O(g) H₂(g) O₂ (g) -228.6 0.0 0.0
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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![Consider the reaction:
\[ 2\text{H}_2(\text{g}) + \text{O}_2(\text{g}) \rightarrow 2\text{H}_2\text{O}(\text{g}) \]
Using standard thermodynamic data at 298 K, calculate the free energy change when 1.87 moles of \(\text{H}_2(\text{g})\) react at standard conditions.
### Thermodynamic Data
| Substance | \(\Delta G^\circ_f\) (kJ/mol) |
|-----------|------------------------------|
| \(\text{H}_2\text{O}(\text{g})\) | \(-228.6\) |
| \(\text{H}_2(\text{g})\) | \(0.0\) |
| \(\text{O}_2(\text{g})\) | \(0.0\) |
\[
\Delta G^\circ_{\text{rxn}} = \, \boxed{\phantom{000}} \, \text{kJ}
\]
### Description
This problem involves calculating the standard free energy change for a given chemical reaction using standard thermodynamic data. The given table provides the standard Gibbs free energy of formation (\(\Delta G^\circ_f\)) for the substances involved in the reaction at 298 K. You’ll need to use the values provided to calculate \(\Delta G^\circ_{\text{rxn}}\) for the reaction. The final free energy change should be adjusted according to the moles specified (1.87 moles of \(\text{H}_2(\text{g})\)).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F883e3e80-624e-4e0d-88a1-3570ac65b326%2Fd88c5d24-825f-46dc-8584-f724f029392b%2Fh1gtkq_processed.png&w=3840&q=75)
Transcribed Image Text:Consider the reaction:
\[ 2\text{H}_2(\text{g}) + \text{O}_2(\text{g}) \rightarrow 2\text{H}_2\text{O}(\text{g}) \]
Using standard thermodynamic data at 298 K, calculate the free energy change when 1.87 moles of \(\text{H}_2(\text{g})\) react at standard conditions.
### Thermodynamic Data
| Substance | \(\Delta G^\circ_f\) (kJ/mol) |
|-----------|------------------------------|
| \(\text{H}_2\text{O}(\text{g})\) | \(-228.6\) |
| \(\text{H}_2(\text{g})\) | \(0.0\) |
| \(\text{O}_2(\text{g})\) | \(0.0\) |
\[
\Delta G^\circ_{\text{rxn}} = \, \boxed{\phantom{000}} \, \text{kJ}
\]
### Description
This problem involves calculating the standard free energy change for a given chemical reaction using standard thermodynamic data. The given table provides the standard Gibbs free energy of formation (\(\Delta G^\circ_f\)) for the substances involved in the reaction at 298 K. You’ll need to use the values provided to calculate \(\Delta G^\circ_{\text{rxn}}\) for the reaction. The final free energy change should be adjusted according to the moles specified (1.87 moles of \(\text{H}_2(\text{g})\)).
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