MISSED THIS? Read Section 19.8 (Pages 871-877); Watch IWE 19.6. Liquid methanol burns in oxygen to form gaseous carbon dioxide and gaseous water. Substance H° (kJ/mol) S° (J/(mol-K)) CH, OH (1) -238.6 126.8 O₂(g) 0 205.2 213.8 117.6 CO₂(g) -393.5 CO,(aq) -413.8 H₂O(g) -241.8 H₂O(1) -187.8 188.8 70.0 ▼ Part D where no represents the stoichiometric coefficients of the products, n, repres of the reactants, and Sº represents the standard entropies. Calculate AG at 25°C. Express your answer in kilojoules to three significant figures. AGixn= Submit 5. ΑΣΦ 1412 314 J/K Request Answer Part E Complete previous part(s) [2(126.8 J ? kJ
MISSED THIS? Read Section 19.8 (Pages 871-877); Watch IWE 19.6. Liquid methanol burns in oxygen to form gaseous carbon dioxide and gaseous water. Substance H° (kJ/mol) S° (J/(mol-K)) CH, OH (1) -238.6 126.8 O₂(g) 0 205.2 213.8 117.6 CO₂(g) -393.5 CO,(aq) -413.8 H₂O(g) -241.8 H₂O(1) -187.8 188.8 70.0 ▼ Part D where no represents the stoichiometric coefficients of the products, n, repres of the reactants, and Sº represents the standard entropies. Calculate AG at 25°C. Express your answer in kilojoules to three significant figures. AGixn= Submit 5. ΑΣΦ 1412 314 J/K Request Answer Part E Complete previous part(s) [2(126.8 J ? kJ
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...
Related questions
Question
![MISSED THIS? Read Section
19.8 (Pages 871-877); Watch IWE 19.6.
Liquid methanol burns in oxygen to form gaseous
carbon dioxide and gaseous water.
Substance H (kJ/mol) S° (J/(mol · K))
CH, OH (1)
-238.6
126.8
O₂(g)
0
205.2
CO₂(g)
-393.5
213.8
CO2(aq) -413.8
117.6
H₂O(g) -241.8
188.8
H₂O(1)
-187.8
70.0
▼
Part D
where no represents the stoichiometric coefficients of the products, n, represents the st
of the reactants, and Sº represents the standard entropies.
AGxn=
Calculate AG at 25°C.
Express your answer in kilojoules to three significant figures.
Submit
=
Provide Feedback
15] ΑΣΦ
Request Answer
Part E Complete previous part(s)
[2(S° co₂(g)) + 4(S° H₂O(g))]- [2(S° CH₂OH()) + 3(S° 0₂(E
[2(213.8 J/K)+4(188.8 J/K)] - [2(126.8 J/K) + 3(2
314 J/K
MacBook Pro
P Pearson
?
kJ
Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions Contac](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa589a0b1-5940-47b0-b798-8fa24b0ff23c%2Fdaa6fad9-8301-4293-b8d7-3d137ad3161f%2F95h8rzj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:MISSED THIS? Read Section
19.8 (Pages 871-877); Watch IWE 19.6.
Liquid methanol burns in oxygen to form gaseous
carbon dioxide and gaseous water.
Substance H (kJ/mol) S° (J/(mol · K))
CH, OH (1)
-238.6
126.8
O₂(g)
0
205.2
CO₂(g)
-393.5
213.8
CO2(aq) -413.8
117.6
H₂O(g) -241.8
188.8
H₂O(1)
-187.8
70.0
▼
Part D
where no represents the stoichiometric coefficients of the products, n, represents the st
of the reactants, and Sº represents the standard entropies.
AGxn=
Calculate AG at 25°C.
Express your answer in kilojoules to three significant figures.
Submit
=
Provide Feedback
15] ΑΣΦ
Request Answer
Part E Complete previous part(s)
[2(S° co₂(g)) + 4(S° H₂O(g))]- [2(S° CH₂OH()) + 3(S° 0₂(E
[2(213.8 J/K)+4(188.8 J/K)] - [2(126.8 J/K) + 3(2
314 J/K
MacBook Pro
P Pearson
?
kJ
Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions Contac
![Gibbs free energy (G) is a measure of the
spontaneity of a chemical reaction. It is the
chemical potential for a reaction, and is minimized
at equilibrium. It is defined as
G=H-TS
where H is enthalpy, T is temperature, and Sis
entropy.
The chemical reaction that causes iron to corrode
in air is given by
4Fe +302 2Fe2O3
in which at 298 K, AH = -1684 kJ and
AS-543.7 J/K.
AGrxn = 302 kJ
Submit
Part C
✓ Correct
This positive value for AG means that, at extremely high temperatures, the corrosion reaction will actually g
reverse, converting iron(III) oxide into iron and oxygen.
Teq =
Previous Answers
At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium?
Express your answer as an integer and include the appropriate units.
► View Available Hint(s)
Submit
Provide Feedback
μÃ
Value
P Pearson
Units
Review | Constants I Periodic Ta
?
5 of 20
Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa589a0b1-5940-47b0-b798-8fa24b0ff23c%2Fdaa6fad9-8301-4293-b8d7-3d137ad3161f%2F14gdj7y_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Gibbs free energy (G) is a measure of the
spontaneity of a chemical reaction. It is the
chemical potential for a reaction, and is minimized
at equilibrium. It is defined as
G=H-TS
where H is enthalpy, T is temperature, and Sis
entropy.
The chemical reaction that causes iron to corrode
in air is given by
4Fe +302 2Fe2O3
in which at 298 K, AH = -1684 kJ and
AS-543.7 J/K.
AGrxn = 302 kJ
Submit
Part C
✓ Correct
This positive value for AG means that, at extremely high temperatures, the corrosion reaction will actually g
reverse, converting iron(III) oxide into iron and oxygen.
Teq =
Previous Answers
At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium?
Express your answer as an integer and include the appropriate units.
► View Available Hint(s)
Submit
Provide Feedback
μÃ
Value
P Pearson
Units
Review | Constants I Periodic Ta
?
5 of 20
Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
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