Consider the reaction: NH4Cl(aq) → NH3(g) + HCl(aq) Using standard absolute entropies at 298 K, calculate the entropy change for the system when 2.15 moles of NH4Cl(aq) react at standard conditions. Substance So NH3 (9) HCl(aq) NH4Cl(aq) AS⁰⁰ system = J K. mol 192.5 56.5 169.9 J/K

Consider the reaction: NH4Cl(aq) → NH3(g) + HCl(aq) Using standard absolute entropies at 298 K, calculate the entropy change for the system when 2.15 moles of NH4Cl(aq) react at standard conditions. Substance So NH3 (9) HCl(aq) NH4Cl(aq) AS⁰⁰ system = J K. mol 192.5 56.5 169.9 J/K

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter16: Thermodynamics: Directionality Of Chemical Reactions

Section: Chapter Questions

Problem 101QRT: Appendix J lists standard molar entropies S, not standard entropies of formation rS. Why is this...

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Question

Consider the reaction:
NH4Cl(aq) → NH3(g) + HCl(aq)
Using standard absolute entropies at 298 K, calculate the entropy change for the system when 2.15 moles of NH4Cl(aq) react at
standard conditions.
ASO
Substance Sº
NH3 (9)
HCl(aq)
NH4Cl(aq)
system
J
K. mol
192.5
56.5
169.9
J/K

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