Consider the reaction: 2HBr(g)- →H2(g) + Br2(1) Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.98 moles of HBr(g) react at standard conditions. AS° system 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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So (J/mol K)

HBr (g): 198.7

H2 (g) : 130.7

Br2 (l): 152.2

Consider the reaction:
2HBr(g)-
→H2(g) + Br2(1)
Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.98 moles of HBr(g) react at standard conditions.
AS° system
J/K
Transcribed Image Text:Consider the reaction: 2HBr(g)- →H2(g) + Br2(1) Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.98 moles of HBr(g) react at standard conditions. AS° system J/K
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