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1/2 O2(g) H2(g) + hydrogen H20 (1) охудen water HYDROGEN FUEL We will find that molecular hydrogen is an excellent fuel alternative to the hydrocarbon fuels from petroleum products since the only product of combustion is water. Combustion of hydrogen is exothermic, and as such is favored enthalpically, AH, = -286 kJ/mol for the reaction in the image. But is the reaction favored entropically? Use the provided standard entropies to determine the change in entropy for the reaction, ASreaction: S°(H2(g)) = 130.7 J/mol K S°(O2(g)) = 205.2 J/mol K S°(H2O(1)) = 70 J/mol K O ASeaction = -163.3 J/mol K AS, = -303.3 J/molK Preaction O ASeaction = -265.9 J/molK O AS eaction = -403.5 J/mol K

1/2 O2(g) H2(g) + hydrogen H20 (1) охудen water HYDROGEN FUEL We will find that molecular hydrogen is an excellent fuel alternative to the hydrocarbon fuels from petroleum products since the only product of combustion is water. Combustion of hydrogen is exothermic, and as such is favored enthalpically, AH, = -286 kJ/mol for the reaction in the image. But is the reaction favored entropically? Use the provided standard entropies to determine the change in entropy for the reaction, ASreaction: S°(H2(g)) = 130.7 J/mol K S°(O2(g)) = 205.2 J/mol K S°(H2O(1)) = 70 J/mol K O ASeaction = -163.3 J/mol K AS, = -303.3 J/molK Preaction O ASeaction = -265.9 J/molK O AS eaction = -403.5 J/mol K

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter9: Ionic And Covalent Bonding
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Problem 9.86QP: A commercial process for preparing ethanol (ethyl alcohol), C2H5OH, consists of passing ethylene...
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1/2 O2(9) H2(g) + hydrogen H20 охудen water ENEL NDE HYDROGEN FUEL We will find that molecular hydrogen is an excellent fuel alternative to the hydrocarbon fuels from petroleum products since the only product of combustion is water. Combustion of hydrogen is exothermic, and as such is favored enthalpically, AH, = -286 kJ/mol for the reaction in the image. But is the reaction favored entropically? Use the provided standard entropies to determine the change in entropy for the reaction, ASresction- S°(H2(g)) = 130.7 J/mol K S°(O2(g)) = 205.2 J/mol K S°(H;O(1)) = 70 J/mol K O ASreaction = -163.3 J/molK ASesetion = -303.3 J/mol K O ASeaction = -265.9 J/molK O AS Preaction = -403.5 J/mol K
Transcribed Image Text:1/2 O2(9) H2(g) + hydrogen H20 охудen water ENEL NDE HYDROGEN FUEL We will find that molecular hydrogen is an excellent fuel alternative to the hydrocarbon fuels from petroleum products since the only product of combustion is water. Combustion of hydrogen is exothermic, and as such is favored enthalpically, AH, = -286 kJ/mol for the reaction in the image. But is the reaction favored entropically? Use the provided standard entropies to determine the change in entropy for the reaction, ASresction- S°(H2(g)) = 130.7 J/mol K S°(O2(g)) = 205.2 J/mol K S°(H;O(1)) = 70 J/mol K O ASreaction = -163.3 J/molK ASesetion = -303.3 J/mol K O ASeaction = -265.9 J/molK O AS Preaction = -403.5 J/mol K
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