Boiling Point

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Jose Robles 1D
Posts: 78
Joined: Fri Aug 02, 2019 12:15 am

Boiling Point

Postby Jose Robles 1D » Sun Nov 24, 2019 11:45 pm

Does one always use London Forces to determine boiling point? I ask because dipole moments are not always reliable.

Jared_Yuge
Posts: 69
Joined: Sat Aug 17, 2019 12:17 am

Re: Boiling Point

Postby Jared_Yuge » Sun Nov 24, 2019 11:48 pm

You always take them into account but if there is a greater intermolecular force that is stronger you consider those instead such as dipole-dipole.

Deepika Reddy 1A
Posts: 103
Joined: Thu Jul 11, 2019 12:15 am

Re: Boiling Point

Postby Deepika Reddy 1A » Sun Nov 24, 2019 11:49 pm

Boiling point can be determined by looking at the strongest intermolecular force that a substance has. If it has a stronger intermolecular force, then it has a higher boiling point. If both substances have london dispersion forces as their strongest IMF, then look at the size of the molecules and the number of electrons to determine which one has a higher boiling point.

ShravanPatel2B
Posts: 53
Joined: Fri Aug 30, 2019 12:18 am

Re: Boiling Point

Postby ShravanPatel2B » Sun Nov 24, 2019 11:50 pm

You shouldn't disregard an intermolecular force when doing these problems because certain forces are stronger than others which can change your answer in different scenarios of different questions

AndreiRekesh1I
Posts: 52
Joined: Fri Aug 30, 2019 12:15 am

Re: Boiling Point

Postby AndreiRekesh1I » Sun Nov 24, 2019 11:50 pm

You can use london forces to compare boiling point if the molecules are both nonpolar, because then you know there's no dipole-dipole at play.


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