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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Guillem_dlc on April 12, 2018, 08:19:50 AM

Title: Boiling point
Post by: Guillem_dlc on April 12, 2018, 08:19:50 AM

Hello,

Does the boiling point depend on the electrons?

Thanks

Title: Re: Boiling point
Post by: Borek on April 12, 2018, 09:05:41 AM

Yes. No. Depends.

Question is way too ambiguous to be answered, please elaborate on what you mean.

Title: Re: Boiling point
Post by: pgk on April 17, 2018, 10:58:04 AM

Boiling point mainly depends on the size of the molecule (but not, exclusively) and thus, one may say: more electrons → larger molecule → higher boiling point.
However, many other factors play an important role therein, such as:
- shape (branched or spherical molecules have lower boiling point than their isomers.)
- polarity increases the boiling point.
- hydrogen bonding increases the boiling point.
- large heteroatoms such as halogens affect the molecular shape to spherical-like and thus, they significantly decrease the boiling point, in comparison to compounds of the same molecular mass.
- etc…

Title: Re: Boiling point
Post by: Mitch on April 18, 2018, 03:31:05 PM

The boiling point isn't affected by free electrons. It will depend on valence electrons and several other parameters.