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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

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

Chemistry
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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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
Transcribed Image Text: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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