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Topic: Compare the boiling point of butenes  (Read 5701 times)

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Offline Winga

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Compare the boiling point of butenes
« on: February 12, 2005, 01:18:37 PM »
Not just for butenes, but all alkenes.

Why the boiling point of but-2-ene is higher than that of but-1-ene?
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Offline jdurg

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Re:Compare the boiling point of butenes
« Reply #1 on: February 12, 2005, 06:09:07 PM »
I think that's because the but-2-ene can be 'stacked' into a neat array which allows for more intermolecular interaction than the but-1-ene can.  Also, but-2-ene has some isomers of its own which can cause the B.P. to change, again due to how well the molecule can stack up and experience intermolecular attractions.
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Offline Winga

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Re:Compare the boiling point of butenes
« Reply #2 on: February 13, 2005, 01:37:43 AM »
Can we use dipole moment to explain it?
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