3. Which of the following would you predict to have a higher standard molar entropy (Sº) value (in J/K)? Explain your logic. a. PF,(g) vs. PF3 (g) b. H₂S (g) vs.H₂O(g) c. NaCl(s) vs. NaCl (aq)
3. Which of the following would you predict to have a higher standard molar entropy (Sº) value (in J/K)? Explain your logic. a. PF,(g) vs. PF3 (g) b. H₂S (g) vs.H₂O(g) c. NaCl(s) vs. NaCl (aq)
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter6: Covalent Bonding
Section: Chapter Questions
Problem 98QRT
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Can you please answer question 3
![11:07
< Back Assignment_2_202_NYB_F2023.docx
or your zumdaní textboOK.
b. Calculate the AH° using bond energies from
Table 8.5 in the Zumdahl textbook. (Note that
the C=O bond energy in CO₂ is 799 kJ/mol)
c. Calculate the AG (in kJ/mol reaction), the
AS surr (in J/K*mol reaction), the AS (in
J/K*mol reaction) and the AS univ (in J/K*mol
reaction) at 298K using Appendix 4 in the
back of your Zumdahl textbook. (Different
approaches can lead to modestly different
answers.)
2C₂H6 (g) +70₂(g) à 4CO₂(g) + 6H₂O(g)
2. Predict the conditions (high temperatures, low
temperatures, all temperatures, no temperature)
under which the following reactions will be
spontaneous. Justify your answer, writing the
word "negative" or "positive" to indicate the sign
next to both AS and AS surr in your justification.
(Assume 1 atm external pressure)
a. 2C₂H6 (g) + 70₂(g) à 4CO₂(g) + 6H₂O(g)
b. HI(g) à H(g) + I(g)
c. 2NO(g) + O₂(g) à 2NO₂(g) (Use table in
Appendix 4, Zumdahl textbook)
3. Which of the following would you predict to have
a higher standard molar entropy (Sº) value (in
J/K)? Explain your logic.
a. PF,(g) vs. PF₂ (g)
b. H₂S (g) vs.H₂O(g)
c. NaCl(s) vs. NaCl (aq)
4. For H₂O₂, the AH°, is 48.5 kJ/mol and the
vap
boiling point is 150.2°C at 1 atm. What is the
change in entropy (in J/K*mol) during
vaporization (AS° vap)?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa7634a6a-5ecc-40e2-9892-46ba7a4cefd4%2F513cb845-a2ad-4a1e-8153-a345b2d1f69d%2F3zp0ast_processed.jpeg&w=3840&q=75)
Transcribed Image Text:11:07
< Back Assignment_2_202_NYB_F2023.docx
or your zumdaní textboOK.
b. Calculate the AH° using bond energies from
Table 8.5 in the Zumdahl textbook. (Note that
the C=O bond energy in CO₂ is 799 kJ/mol)
c. Calculate the AG (in kJ/mol reaction), the
AS surr (in J/K*mol reaction), the AS (in
J/K*mol reaction) and the AS univ (in J/K*mol
reaction) at 298K using Appendix 4 in the
back of your Zumdahl textbook. (Different
approaches can lead to modestly different
answers.)
2C₂H6 (g) +70₂(g) à 4CO₂(g) + 6H₂O(g)
2. Predict the conditions (high temperatures, low
temperatures, all temperatures, no temperature)
under which the following reactions will be
spontaneous. Justify your answer, writing the
word "negative" or "positive" to indicate the sign
next to both AS and AS surr in your justification.
(Assume 1 atm external pressure)
a. 2C₂H6 (g) + 70₂(g) à 4CO₂(g) + 6H₂O(g)
b. HI(g) à H(g) + I(g)
c. 2NO(g) + O₂(g) à 2NO₂(g) (Use table in
Appendix 4, Zumdahl textbook)
3. Which of the following would you predict to have
a higher standard molar entropy (Sº) value (in
J/K)? Explain your logic.
a. PF,(g) vs. PF₂ (g)
b. H₂S (g) vs.H₂O(g)
c. NaCl(s) vs. NaCl (aq)
4. For H₂O₂, the AH°, is 48.5 kJ/mol and the
vap
boiling point is 150.2°C at 1 atm. What is the
change in entropy (in J/K*mol) during
vaporization (AS° vap)?
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