Consider the reaction:2H₂O(1) 2H₂(g) + O₂(g)Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 1.81 moles of H₂O(1) react at standard conditions.AS°surroundings=J/K HydrogenH₂ (g)H (g)Ht (g)H+ (aq)OH(aq)H₂O (1)H₂O (g)H₂O₂ (1)OxygenO₂ (g)O(g)03 (g)AHºf (kJ/mol) AG°f (kJ/mol)00218.0203.21536.20-230.0-157.0-285.8-237.1-241.8-228.6-187.8-120.4AHºf (kJ/mol) AG°f (kJ/mol)00249.2231.7142.7163.2Sº (J/mol K)130.7114.7-11.069.9188.8109.6Sº (J/mol K)205.1161.1238.9

Enthalpy change of reaction (∆H) is calculated from enthalpies of formations of Products and…

Consider the reaction: 2H₂O(1) 2H₂(g) + O₂(g) Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 1.81 moles of H₂O(1) react at standard conditions. AS° surroundings = J/K

Consider the reaction: 2H₂O(1) 2H₂(g) + O₂(g) Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 1.81 moles of H₂O(1) react at standard conditions. AS° surroundings = J/K

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Consider the reaction:
2H₂O(1) 2H₂(g) + O₂(g)
Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 1.81 moles of H₂O(1) react at standard conditions.
AS°
surroundings
=
J/K

Hydrogen
H₂ (g)
H (g)
Ht (g)
H+ (aq)
OH(aq)
H₂O (1)
H₂O (g)
H₂O₂ (1)
Oxygen
O₂ (g)
O(g)
03 (g)
AHºf (kJ/mol) AG°f (kJ/mol)
0
0
218.0
203.2
1536.2
0
-230.0
-157.0
-285.8
-237.1
-241.8
-228.6
-187.8
-120.4
AHºf (kJ/mol) AG°f (kJ/mol)
0
0
249.2
231.7
142.7
163.2
Sº (J/mol K)
130.7
114.7
-11.0
69.9
188.8
109.6
Sº (J/mol K)
205.1
161.1
238.9

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