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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![**Problem Statement:**
What is the ΔS° if the ΔH° is -199 kJ and ΔG° is -197.78 kJ?
**Options:**
- a) 25 J/K
- b) -25 J/K
- c) +0.25 J/K
- d) 4.1 J/K
- e) -4.1 J/K
**Explanation:**
The question involves determining the change in entropy (ΔS°) for a reaction given the changes in enthalpy (ΔH°) and Gibbs free energy (ΔG°). It seems to be related to thermodynamics, where the formula used is:
\[ \Delta G° = \Delta H° - T\Delta S° \]
Rearrange the formula to solve for ΔS°:
\[ \Delta S° = \frac{\Delta H° - \Delta G°}{T} \]
Given:
- ΔH° = -199 kJ
- ΔG° = -197.78 kJ
To solve the problem, substitute values and calculate ΔS°. Note: Ensure units are consistent for accurate calculation. The temperature (T) may be needed or assumed if not provided.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8b95b700-8bed-417e-9673-b76d23c39032%2Fdf7f1de8-2b21-446b-940c-23c51f55a112%2Fhn1vx_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Problem Statement:**
What is the ΔS° if the ΔH° is -199 kJ and ΔG° is -197.78 kJ?
**Options:**
- a) 25 J/K
- b) -25 J/K
- c) +0.25 J/K
- d) 4.1 J/K
- e) -4.1 J/K
**Explanation:**
The question involves determining the change in entropy (ΔS°) for a reaction given the changes in enthalpy (ΔH°) and Gibbs free energy (ΔG°). It seems to be related to thermodynamics, where the formula used is:
\[ \Delta G° = \Delta H° - T\Delta S° \]
Rearrange the formula to solve for ΔS°:
\[ \Delta S° = \frac{\Delta H° - \Delta G°}{T} \]
Given:
- ΔH° = -199 kJ
- ΔG° = -197.78 kJ
To solve the problem, substitute values and calculate ΔS°. Note: Ensure units are consistent for accurate calculation. The temperature (T) may be needed or assumed if not provided.
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