What is the AS° if the AH° is -199 kJ and AG ° is -197.78 kJ? a) 25 J/K Ob) -25 J/K c) +0.25 J/K d) 4.1 J/K O e) -4.1 J/K

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
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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.
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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