
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question
Calculate ΔS° for each of the three following reactions using the data provided below:
Formula | ΔS °, J/mol•K | ΔG °, kJ/mol |
---|---|---|
CH3OH(g) | 239.9 | -162.0 |
CH4(g) | 186.2 | -50.8 |
H2(g) | 130.6 | 0 |
O2(g) | 205.0 | 0 |
CO2(g) | 213.8 | -394.4 |
H2O(g) | 188.8 | -228.6 |
H2O(l) | 69.9 | -237.2 |
Reaction 1:
2CH3OH(g)+3O2(g)2CO2(g)+4H2O(g)
ΔS °rxn = _____ J/K
Reaction 2:
CH4(g)+2O2(g)CO2(g)+2H2O(l)
ΔS °rxn = ______ J/K
Reaction 3:
2H2(g)+O2(g)2H2O(g)
ΔS °rxn = ______ J/K
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