Thermodynamics Quantities for Selected Substances at298.15 K (25°C)AH°f (kJ/mol)S (J/K-mol)SubstanceОхygen205.0O218)69.91H2O(1)-285.83Sulfur31.88Sulfur(s, rhombic)248.5-269.9SO2(g)256.2-395.2SO3(9)AS° (J/K)Reactiona. 25(s, rhombic)+ 302(g) → 2SO3(g)2SO2(9)b. S(s, rhombic) + O2(g)302(g)+c. 2SO3(g)2S(s, rhombic)O2(g)+d. SO2(g) → S(s, rhombic)

(a) 2S (s, rhombic) + 3O2(g)-----> 2SO3(g) (b) S (s, rhombic) + O2(g)-----> SO2(g) (c) 2SO3…

AH°F (kJ/mol) S (J/K-mol) Substance Охуgen 205.0 O218) 69.91 H2O) -285.83 Sulfur 31.88 Sulfur(s, rhombic) 248.5 SO2(g) -269.9 256.2 SO3(g) -395.2 AS° (J/K) Reaction a. 2S(s, rhombic) + 302(g) → 2S03(9) b. S(s, rhombic) + O2(g) → 2SO2(g) c. 2S03(g) → 2S(s, rhombic) + 302(g)

AH°F (kJ/mol) S (J/K-mol) Substance Охуgen 205.0 O218) 69.91 H2O) -285.83 Sulfur 31.88 Sulfur(s, rhombic) 248.5 SO2(g) -269.9 256.2 SO3(g) -395.2 AS° (J/K) Reaction a. 2S(s, rhombic) + 302(g) → 2S03(9) b. S(s, rhombic) + O2(g) → 2SO2(g) c. 2S03(g) → 2S(s, rhombic) + 302(g)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter17: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 107CWP: Given the thermodynamic data below, calculate S and Ssurr for the following reaction at 25C and 1...

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Question

Thermodynamics Quantities for Selected Substances at
298.15 K (25°C)
AH°f (kJ/mol)
S (J/K-mol)
Substance
Охygen
205.0
O218)
69.91
H2O(1)
-285.83
Sulfur
31.88
Sulfur(s, rhombic)
248.5
-269.9
SO2(g)
256.2
-395.2
SO3(9)
AS° (J/K)
Reaction
a. 25(s, rhombic)
+ 302(g) → 2SO3(g)
2SO2(9)
b. S(s, rhombic) + O2(g)
302(g)
+
c. 2SO3(g)
2S(s, rhombic)
O2(g)
+
d. SO2(g) → S(s, rhombic)

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