Boiling Point

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KNguyen_1I
Posts: 101
Joined: Sat Aug 17, 2019 12:16 am

Boiling Point

Postby KNguyen_1I » Wed Nov 13, 2019 4:00 pm

When considering boiling point, what are the rankings of the intermolecular forces (from weakest to strongest) we should consider to determine highest boiling point?

205296774
Posts: 66
Joined: Thu Jul 25, 2019 12:15 am

Re: Boiling Point

Postby 205296774 » Wed Nov 13, 2019 4:06 pm

The rankings for intermolecular forces are as follows:

london dispersion < dipole-dipole < H-bond < ionic bond

It can therefore be determined that ionic bonds will have the highest boiling point because, as the strongest bonds, they require the greatest amount of energy (heat in this case) to be broken and subsequently change states.

Hope this helps!

Alex Hitti 3E
Posts: 51
Joined: Sat Aug 17, 2019 12:17 am

Re: Boiling Point

Postby Alex Hitti 3E » Wed Nov 13, 2019 4:10 pm

Concept: The stronger the bond, the higher the boiling point.

From highest to lowest boiling point:

ion - ion
ion - dipole
hydrogen bond
dipole - dipole
induced dipole - dipole
induced dipole - induced dipole

derinceltik1K
Posts: 51
Joined: Sat Aug 17, 2019 12:15 am

Re: Boiling Point

Postby derinceltik1K » Wed Nov 13, 2019 10:17 pm

The highest boiling point would be of the strongest molecule. Molecule's strength is measured by its intermolecular forces.
Ionic bonded molecules would have the highest boiling point.
London Dispersion forces would be the easiest to break resulting in lowest boiling points.

Quynh Vo
Posts: 45
Joined: Sun Sep 29, 2019 12:15 am

Re: Boiling Point

Postby Quynh Vo » Thu Nov 14, 2019 6:59 pm

Ion-ion bonds have the highest boiling points whereas london force have the lowest boiling points.

Arianna Perea 3H
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Boiling Point

Postby Arianna Perea 3H » Fri Nov 15, 2019 6:33 pm

If it has more surface area, will the boiling point be higher?

Tiffany Vo 3G
Posts: 52
Joined: Sat Aug 17, 2019 12:17 am

Re: Boiling Point

Postby Tiffany Vo 3G » Sat Nov 16, 2019 12:01 am

Arianna Perea 3H wrote:If it has more surface area, will the boiling point be higher?


The boiling point should be higher if the molecule has more surface area.


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