The value of ΔG° at 25 °C for the decomposition of phosphorous trichloride into its constituent elements, 2PCl3 (g) → P2 (g) + 3Cl2 (g)is ________ kJ/mol.A) -539.2B) +539.2C) -642.9D) +642.9E) -373.3 Thermodynamic Quantities for Selected Substances at 298.15 K (25 °C)SubstanceAH°f (kJ/mol) AG°f (kJ/mol) S (J/K-mol)ChlorineCl2 (g)Cl- (aq)222.96-167.2-131.256.5Охуgen02 (g)205.0H2O (1)-285.83-237.1369.91PhosphorusP2 (g)144.3103.7218.1PC13 (g)-288.1-269.6311.7РОСІ3 (g)-542.2-502.5325

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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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The value of ΔG° at 25 °C for the decomposition of phosphorous trichloride into
its constituent elements,
2PCl3 (g) → P2 (g) + 3Cl2 (g)
is ________ kJ/mol.
A) -539.2
B) +539.2
C) -642.9
D) +642.9
E) -373.3

Thermodynamic Quantities for Selected Substances at 298.15 K (25 °C)
Substance
AH°f (kJ/mol) AG°f (kJ/mol) S (J/K-mol)
Chlorine
Cl2 (g)
Cl- (aq)
222.96
-167.2
-131.2
56.5
Охуgen
02 (g)
205.0
H2O (1)
-285.83
-237.13
69.91
Phosphorus
P2 (g)
144.3
103.7
218.1
PC13 (g)
-288.1
-269.6
311.7
РОСІ3 (g)
-542.2
-502.5
325

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