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colleen colleen
wrote...
Valued Member
Posts: 17077
12 years ago
Which of the molecules below has the higher boiling point? Briefly explain your choice.

CH3CH2CH2CH2CH3    or    (CH3)2CHCH2CH3
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wrote...
12 years ago
CH3CH2CH2CH2CH3 has the higher boiling point. As the degree of branching increases, the surface area of the molecule decreases and the potential for intermolecular attraction via London forces decreases. Greater surface area leads to a more intermolecular attraction which in results in a higher boiling point.
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