Highest heat of hydrogenation Lowest heat of hydrogenation Answer Bank

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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### Ranking Alkenes by Heat of Hydrogenation

**Instructions:** Rank the given alkenes in order of decreasing heat of hydrogenation. 

This exercise involves arranging the alkenes from the highest to the lowest heat of hydrogenation.

#### Diagram for Ranking:
- There is a vertical rectangular box.
- The top of the box is labeled "Highest heat of hydrogenation."
- The bottom of the box is labeled "Lowest heat of hydrogenation."

#### Answer Bank:
- **First image:** A triangle with a double bond inside.
- **Second image:** A hexagon with alternating double bonds, indicating a benzene ring structure.
- **Third image:** A square with two parallel lines inside, indicating a double bond.

To rank the alkenes, drag and place each structure into the vertical rectangular box according to their heat of hydrogenation from highest at the top to lowest at the bottom. 

**Note:** Heat of hydrogenation typically decreases with increasing number of double bonds or resonance stability.
Transcribed Image Text:### Ranking Alkenes by Heat of Hydrogenation **Instructions:** Rank the given alkenes in order of decreasing heat of hydrogenation. This exercise involves arranging the alkenes from the highest to the lowest heat of hydrogenation. #### Diagram for Ranking: - There is a vertical rectangular box. - The top of the box is labeled "Highest heat of hydrogenation." - The bottom of the box is labeled "Lowest heat of hydrogenation." #### Answer Bank: - **First image:** A triangle with a double bond inside. - **Second image:** A hexagon with alternating double bonds, indicating a benzene ring structure. - **Third image:** A square with two parallel lines inside, indicating a double bond. To rank the alkenes, drag and place each structure into the vertical rectangular box according to their heat of hydrogenation from highest at the top to lowest at the bottom. **Note:** Heat of hydrogenation typically decreases with increasing number of double bonds or resonance stability.
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