A B H₂C The structural formula of erucic acid and behenic acid с H₂C D erucic acid behenic acid Which of the following best explains why erucic acid is liquid at room temperature but behenic acid is solid at room temperature? OH The presence of a double carbon to carbon bond in erucic acid prevents the molecule from packing closely together. The lack of any double carbon-carbon bonds in behenic acid causes the molecule to be come polar and therefore packed more tightly. The larger number of carbon atoms in erucic acid prevents the molecule from packing tightly together. OH The smaller number of carbon atoms in behenic acid creates stronger covalent bonds between the carbon atoms allowing for them to pack more tightly together.

Human Anatomy & Physiology (11th Edition)
11th Edition
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Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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The figure below illustrates the molecular structures of two fatty acids.

**Molecular Structures:**
1. **Erucic Acid:**
   - Contains a long hydrocarbon chain with a double bond present.
   - This double bond introduces a kink in the structure.

2. **Behenic Acid:**
   - Contains a long hydrocarbon chain without any double bonds.
   - This structure is straight due to the lack of double bonds.

*The structural formula of erucic acid and behenic acid* 

**Question:**
Which of the following best explains why erucic acid is liquid at room temperature but behenic acid is solid at room temperature?

**Options:**

- **A**: The presence of a double carbon to carbon bond in erucic acid prevents the molecule from packing closely together.
  
- **B**: The lack of any double carbon-carbon bonds in behenic acid causes the molecule to become polar and therefore packed more tightly.
  
- **C**: The larger number of carbon atoms in erucic acid prevents the molecule from packing tightly together.
  
- **D**: The smaller number of carbon atoms in behenic acid creates stronger covalent bonds between the carbon atoms allowing for them to pack more tightly together.
Transcribed Image Text:The figure below illustrates the molecular structures of two fatty acids. **Molecular Structures:** 1. **Erucic Acid:** - Contains a long hydrocarbon chain with a double bond present. - This double bond introduces a kink in the structure. 2. **Behenic Acid:** - Contains a long hydrocarbon chain without any double bonds. - This structure is straight due to the lack of double bonds. *The structural formula of erucic acid and behenic acid* **Question:** Which of the following best explains why erucic acid is liquid at room temperature but behenic acid is solid at room temperature? **Options:** - **A**: The presence of a double carbon to carbon bond in erucic acid prevents the molecule from packing closely together. - **B**: The lack of any double carbon-carbon bonds in behenic acid causes the molecule to become polar and therefore packed more tightly. - **C**: The larger number of carbon atoms in erucic acid prevents the molecule from packing tightly together. - **D**: The smaller number of carbon atoms in behenic acid creates stronger covalent bonds between the carbon atoms allowing for them to pack more tightly together.
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