4F€O(s) + Oz(g) → 2Fe,03(s) > Calculate the standard enthalpy change from standard enthalpies of formation: AH°rxn: kJ AH, Substance (kJ/mole) FeO(s) -271.9 0,(g) 0.0 Fe,O3 (s) -824.2
4F€O(s) + Oz(g) → 2Fe,03(s) > Calculate the standard enthalpy change from standard enthalpies of formation: AH°rxn: kJ AH, Substance (kJ/mole) FeO(s) -271.9 0,(g) 0.0 Fe,O3 (s) -824.2
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...
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![**Chemical Reaction and Enthalpy Calculation**
**Chemical Equation:**
\[ 4\text{FeO (s)} + \text{O}_2\text{ (g)} \longrightarrow 2\text{Fe}_2\text{O}_3\text{ (s)} \]
---
**Objective:**
Calculate the standard enthalpy change (\(\Delta H^\circ_{\text{rxn}}\)) from standard enthalpies of formation.
---
**Standard Enthalpy of Formation (\(\Delta H_f\)) Table:**
| Substance | \(\Delta H_f\) (kJ/mole) |
|----------------|--------------------------|
| \(\text{FeO (s)}\) | -271.9 |
| \(\text{O}_2\text{ (g)}\) | 0.0 |
| \(\text{Fe}_2\text{O}_3\text{ (s)}\) | -824.2 |
---
**Calculation:**
Use the given standard enthalpies of formation to calculate \(\Delta H^\circ_{\text{rxn}}\):
**Formula:**
\[ \Delta H^\circ_{\text{rxn}} = \sum \Delta H_f (\text{products}) - \sum \Delta H_f (\text{reactants}) \]
This will help determine the energy change associated with the reaction.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbc3eda98-838a-48fa-9790-2f190fa845b2%2Fe9a5b975-ccf4-4d73-97ee-82ed6741a9bd%2Fwdh9fq_processed.png&w=3840&q=75)
Transcribed Image Text:**Chemical Reaction and Enthalpy Calculation**
**Chemical Equation:**
\[ 4\text{FeO (s)} + \text{O}_2\text{ (g)} \longrightarrow 2\text{Fe}_2\text{O}_3\text{ (s)} \]
---
**Objective:**
Calculate the standard enthalpy change (\(\Delta H^\circ_{\text{rxn}}\)) from standard enthalpies of formation.
---
**Standard Enthalpy of Formation (\(\Delta H_f\)) Table:**
| Substance | \(\Delta H_f\) (kJ/mole) |
|----------------|--------------------------|
| \(\text{FeO (s)}\) | -271.9 |
| \(\text{O}_2\text{ (g)}\) | 0.0 |
| \(\text{Fe}_2\text{O}_3\text{ (s)}\) | -824.2 |
---
**Calculation:**
Use the given standard enthalpies of formation to calculate \(\Delta H^\circ_{\text{rxn}}\):
**Formula:**
\[ \Delta H^\circ_{\text{rxn}} = \sum \Delta H_f (\text{products}) - \sum \Delta H_f (\text{reactants}) \]
This will help determine the energy change associated with the reaction.
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