Thermodynamics Quantities for Selected Substances at 298.15 K (25⁰C)Substance∆H⁰f (kJ/mol)∆G⁰f (kJ/mol)S (J/K-mol)Hydrogen H2(g)00130.58 Oxygen O2(g)00205.0H2O(l)-285.83-237.1369.9110. What is the ∆S⁰ in the combustion of hydrogen in the presence of excess oxygen yields water: 2H2(g) + O2(g) → 2H2O(l) in J/K?

The degree of randomness in a system is measured in terms of entropy. The higher the entropy greater…

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Chemistry for Engineering Students

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ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter10: Entropy And The Second Law Of Thermodynamics

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Thermodynamics Quantities for Selected Substances at 298.15 K (25⁰C)
Substance	∆H⁰f (kJ/mol)	∆G⁰f (kJ/mol)	S (J/K-mol)
Hydrogen
H_2(g)	0	0	130.58

Oxygen
O_2(g)	0	0	205.0
H₂O_(l)	-285.83	-237.13	69.91

10. What is the ∆S⁰ in the combustion of hydrogen in the presence of excess oxygen yields water: 2H_2(g)+ O_2(g) → 2H₂O_(l) in J/K?

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