25 substarce D1toF(KS/mel) G(KJ(mcl) s°(SImel.Kl) P2 PC13 g POCsg Clay 144.3 -2881 -542.2 218.1 311.7 325 222.96 20s.0 69.91 -285.83 The value of AS° for the formation of phespherustvichleride Fromits censtinuent element P2 (g)t 3C12 (9) → 2 PCl 3cg) Fs- 9/ Komel A)-311.7 B) +311.7'C)-263.6Dti29.4E) -/29.4 100
25 substarce D1toF(KS/mel) G(KJ(mcl) s°(SImel.Kl) P2 PC13 g POCsg Clay 144.3 -2881 -542.2 218.1 311.7 325 222.96 20s.0 69.91 -285.83 The value of AS° for the formation of phespherustvichleride Fromits censtinuent element P2 (g)t 3C12 (9) → 2 PCl 3cg) Fs- 9/ Komel A)-311.7 B) +311.7'C)-263.6Dti29.4E) -/29.4 100
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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![**Thermodynamic Properties Table**
The table below provides standard thermodynamic data for several substances in their gaseous forms. The values are presented for standard enthalpy of formation (\( \Delta H^\circ_f \)), standard Gibbs free energy (\( G^\circ \)), and standard entropy (\( S^\circ \)). All values are specific to each substance in the units indicated.
| **Substance** | \( \Delta H^\circ_f \) (kJ/mol) | \( G^\circ \) (kJ/mol) | \( S^\circ \) (J/mol·K) |
|---------------|------------------|--------------|----------------|
| \( P_2 \) (g) | 144.3 | - | 218.1 |
| \( PCl_3 \) (g)| -288.1 | - | 311.7 |
| \( POCl_3 \) (g)| -542.2 | - | 325 |
| \( Cl_2 \) (g)| 0 | 0 | 222.96 |
| \( O_2 \) (g) | 0 | 0 | 205.0 |
| \( I_2O_4 \) | -285.83 | - | 69.91 |
**Entropy Change Calculation**
The problem provided is to calculate the entropy change (\( \Delta S^\circ \)) for the formation of phosphorus trichloride (\( PCl_3 \)) from its constituent elements according to the reaction:
\[ P_2 (g) + 3Cl_2 (g) \rightarrow 2PCl_3 (g) \]
The possible answers for \( \Delta S^\circ \) (J/K·mol) are:
- A) -311.7
- B) +311.7
- C) -263.6
- D) (+129.4) E) -129.4
**Instructions**
To solve this type of problem, you can use the standard entropy values and apply the formula for calculating the change in entropy of the reaction:
\[ \Delta S^\circ = \sum S^\circ_{products} - \sum S^\circ_{reactants} \]
Use the entropy values provided in the table for the necessary calculations.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6ef85c79-8e8f-4d9a-890a-b67fe0c4488a%2Fe00ce102-135f-4ed0-8e9a-9351d22046ed%2F3n8c1ln_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Thermodynamic Properties Table**
The table below provides standard thermodynamic data for several substances in their gaseous forms. The values are presented for standard enthalpy of formation (\( \Delta H^\circ_f \)), standard Gibbs free energy (\( G^\circ \)), and standard entropy (\( S^\circ \)). All values are specific to each substance in the units indicated.
| **Substance** | \( \Delta H^\circ_f \) (kJ/mol) | \( G^\circ \) (kJ/mol) | \( S^\circ \) (J/mol·K) |
|---------------|------------------|--------------|----------------|
| \( P_2 \) (g) | 144.3 | - | 218.1 |
| \( PCl_3 \) (g)| -288.1 | - | 311.7 |
| \( POCl_3 \) (g)| -542.2 | - | 325 |
| \( Cl_2 \) (g)| 0 | 0 | 222.96 |
| \( O_2 \) (g) | 0 | 0 | 205.0 |
| \( I_2O_4 \) | -285.83 | - | 69.91 |
**Entropy Change Calculation**
The problem provided is to calculate the entropy change (\( \Delta S^\circ \)) for the formation of phosphorus trichloride (\( PCl_3 \)) from its constituent elements according to the reaction:
\[ P_2 (g) + 3Cl_2 (g) \rightarrow 2PCl_3 (g) \]
The possible answers for \( \Delta S^\circ \) (J/K·mol) are:
- A) -311.7
- B) +311.7
- C) -263.6
- D) (+129.4) E) -129.4
**Instructions**
To solve this type of problem, you can use the standard entropy values and apply the formula for calculating the change in entropy of the reaction:
\[ \Delta S^\circ = \sum S^\circ_{products} - \sum S^\circ_{reactants} \]
Use the entropy values provided in the table for the necessary calculations.
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