Consider the reaction: 2NH3 (9)+202 (9) → N2O(g) + 3H2O(1) Using standard absolute entropies at 298 K, calculate the entropy change for the system when 1.85 moles of NH3 (9) react at standard conditions. Substance S (J/K mol) ASO system NH3 (9) 192.5 02(9) 205.1 N₂O(g) 219.9 H2O(l) 69.9 = J/K

Consider the reaction: 2NH3 (9)+202 (9) → N2O(g) + 3H2O(1) Using standard absolute entropies at 298 K, calculate the entropy change for the system when 1.85 moles of NH3 (9) react at standard conditions. Substance S (J/K mol) ASO system NH3 (9) 192.5 02(9) 205.1 N₂O(g) 219.9 H2O(l) 69.9 = J/K

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter17: Chemcial Thermodynamics

Section: Chapter Questions

Problem 17.70QE: What is the sign of the standard Gibbs free-energy change at low temperatures and at high...

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Question

Consider the reaction:
2NH3 (9)+202 (9) → N2O(g) + 3H2O(1)
Using standard absolute entropies at 298 K, calculate the entropy change for the system when 1.85 moles of NH3 (9) react at standard conditions.
Substance S (J/K mol)
ASO
system
NH3 (9)
192.5
02(9)
205.1
N₂O(g)
219.9
H2O(l)
69.9
=
J/K

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