**Classifying Reaction Spontaneity Based on ΔH and ΔS**This educational material presents the classification of possible combinations of thermodynamic values \(\Delta H\) (enthalpy change) and \(\Delta S\) (entropy change) for a chemical reaction based on the resulting spontaneity at various temperature conditions. The categories are divided into four sections:1. **Spontaneous as written at all temperatures** - \(\Delta H\) = - (negative) - \(\Delta S\) = + (positive)2. **Spontaneous in reverse at all temperatures**3. **Spontaneous as written above a certain temperature**4. **Spontaneous as written below a certain temperature**At the bottom of the image, there is an "Answer Bank" containing different combinations of \(\Delta H\) and \(\Delta S\):- \(\Delta H\) = +, \(\Delta S\) = + - \(\Delta H\) = -, \(\Delta S\) = -- \(\Delta H\) = +, \(\Delta S\) = -- \(\Delta H\) = -, \(\Delta S\) = +Currently, the combination \(\Delta H\) = -, \(\Delta S\) = - has been classified under "Spontaneous as written at all temperatures." The remaining combinations need to be placed in their respective categories based on spontaneity criteria.

Answered: Image /qna-images/answer/5307786e-9d42-4a8a-92a6-3a6a0c217ad4.jpg

Answered: Classify the possible combinations of…

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Chemistry

Classify the possible combinations of signs for a reaction's AH and AS values by the resulting spontaneity.

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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Question

**Classifying Reaction Spontaneity Based on ΔH and ΔS**

This educational material presents the classification of possible combinations of thermodynamic values \(\Delta H\) (enthalpy change) and \(\Delta S\) (entropy change) for a chemical reaction based on the resulting spontaneity at various temperature conditions. The categories are divided into four sections:

1. **Spontaneous as written at all temperatures**

- \(\Delta H\) = - (negative)
- \(\Delta S\) = + (positive)

2. **Spontaneous in reverse at all temperatures**

3. **Spontaneous as written above a certain temperature**

4. **Spontaneous as written below a certain temperature**

At the bottom of the image, there is an "Answer Bank" containing different combinations of \(\Delta H\) and \(\Delta S\):

- \(\Delta H\) = +, \(\Delta S\) = +
- \(\Delta H\) = -, \(\Delta S\) = -
- \(\Delta H\) = +, \(\Delta S\) = -
- \(\Delta H\) = -, \(\Delta S\) = +

Currently, the combination \(\Delta H\) = -, \(\Delta S\) = - has been classified under "Spontaneous as written at all temperatures." The remaining combinations need to be placed in their respective categories based on spontaneity criteria.

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