Question:
The boiling point of alcohols increases with the increase in the number of carbon atoms but decreases on branching. Why?
The boiling point of alcohols increases with the increase in the number of carbon atoms but decreases on branching. Why?
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Boiling point trends in alcohols depend on molecular weight, branching, and intermolecular hydrogen bonding.
Updated On: Mar 5, 2025
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Solution and Explanation
- Increase in boiling point:
Higher carbon atoms increase molecular weight and van der Waals forces.
- Decrease in branching:
Branching reduces surface area, weakening intermolecular forces.
Higher carbon atoms increase molecular weight and van der Waals forces.
- Decrease in branching:
Branching reduces surface area, weakening intermolecular forces.
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