Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter10: Entropy And The Second Law Of Thermodynamics
Section: Chapter Questions
Problem 10.35PAE: Use tabulated thermodynamic data to calculate the standard entropy change of each of the reactions...
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Question
Answer: 125.6 J/K
Expert Solution
Step 1
The balanced reaction is given as :
2 H2O2 (l) → 2 H2O (l) + O2 (g)
The standard molar entropy of reactants and products are :
H2O2 (l) = 109.6 J/mol-K
H2O (l) = 69.9 J/mol-K
O2 (g) = 205 J/mol-K
Step 2
The standard entropy change for the reaction can be calculated as :
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