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of AS° for H aO in

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Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter15: Energy And Chemical Change
Section: Chapter Questions
Problem 80A
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SASA CHEMISTRY

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?
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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