whic is more stable?

[Dencology]

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which isomer of 2-pentene is more stable, the cis or the trans isomer?

 

[AndyK]

Trans is almost always more stable because it's less bulky.

 

[doc3232]

Trans is almost always more stable because it's less bulky.

I agree.

 

[ucla2134]

which isomer of 2-pentene is more stable, the cis or the trans isomer?

i converted the word stable to the melting point, so the one has the highest melting point is the most stable. Only trans has higher meting point

 

[gentile1225]

cis has a higher bp because of a net dipole, and trans have higher mp's because they can fit into a crystal better.

 

[doc3232]

i converted the word stable to the melting point, so the one has the highest melting point is the most stable. Only trans has higher meting point

cis has a higher bp because of a net dipole, and trans have higher mp's because they can fit into a crystal better.

Nice concepts...but IMO too complex.