Thermodynamics Quantities for Selected Substances at 298.15 K (25°C) Substance AH°F S (J/K-mol) (kJ/mol) Carbon C2H2(g) C2H4(9) C2H6(9) 226.7 200.8 52.30 219.4 -84.68 229.5 Hydrogen H2(g) 130.58 1. What is the value of AS° for the catalytic hydrogenation of ethene to ethane: C2H4(g) + H2(g) C2Hólg) + 2H2O, in J/K? 2. What is the value of AS° for the catalytic hydrogenation of acetylene to ethane: C2H- 2(9) + 2H2(g) → C2H6(g) in J/K?
Thermodynamics Quantities for Selected Substances at 298.15 K (25°C) Substance AH°F S (J/K-mol) (kJ/mol) Carbon C2H2(g) C2H4(9) C2H6(9) 226.7 200.8 52.30 219.4 -84.68 229.5 Hydrogen H2(g) 130.58 1. What is the value of AS° for the catalytic hydrogenation of ethene to ethane: C2H4(g) + H2(g) C2Hólg) + 2H2O, in J/K? 2. What is the value of AS° for the catalytic hydrogenation of acetylene to ethane: C2H- 2(9) + 2H2(g) → C2H6(g) in J/K?
General Chemistry - Standalone book (MindTap Course List)
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
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Chapter18: Thermodynamics And Equilibrium
Section: Chapter Questions
Problem 18.98QP: When 1.000 g of ethylene glycol, C2H6O2, is burned at 25C and 1.00 atmosphere pressure, H2O(l) and...
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Transcribed Image Text:Thermodynamics Quantities for Selected
Substances at 298.15 K (25°C)
Substance
AH°F
S (J/K-mol)
(kJ/mol)
Carbon
C2H2[g)
C2H4(g)
C2H6(g)
226.7
200.8
52.30
219.4
-84.68
229.5
Hydrogen
H2(g)
130.58
1. What is the value of AS° for the catalytic hydrogenation of ethene to ethane: C2H4(g) +
H2(g) → C2H6(g) + 2H2O) in J/K?
2. What is the value of AS° for the catalytic hydrogenation of acetylene to ethane: C2H-
2(g) + 2H2(g) → C2H6(g) in J/K?
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