London Dispersion

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Ashvi_Luthra_4H
Posts: 33
Joined: Wed Jun 13, 2018 3:00 am

London Dispersion

Postby Ashvi_Luthra_4H » Fri Dec 07, 2018 11:33 pm

If LDFs are supposed to be commonplace and weak, how can they be stronger than dipole-dipole interactions?

Claudia Luong 4K
Posts: 59
Joined: Fri Sep 28, 2018 12:25 am

Re: London Dispersion

Postby Claudia Luong 4K » Sat Dec 08, 2018 8:18 am

In larger heavier atoms/molecules, there are more polarizable electrons causing the LDFs to be so strong that they can be even stronger than dipole-dipole forces.

Soyoung Park 1H
Posts: 30
Joined: Sat Sep 29, 2018 12:15 am

Re: London Dispersion

Postby Soyoung Park 1H » Sat Dec 08, 2018 2:57 pm

The size of the atoms/ molecules have to be taken into consideration as well, not just the forces.

Lisa Werner 2F
Posts: 72
Joined: Fri Sep 28, 2018 12:17 am

Re: London Dispersion

Postby Lisa Werner 2F » Sat Dec 08, 2018 5:51 pm

If a molecule has many atoms with high polarizability, the LDF can actually be quite strong.

Ahmed Mahmood 4D
Posts: 72
Joined: Fri Sep 28, 2018 12:28 am

Re: London Dispersion

Postby Ahmed Mahmood 4D » Sat Dec 08, 2018 10:55 pm

Larger molecules with many electrons and a greater surface area can be capable of being stronger than dipole-dipole forces in limited cases.

Manas_Varma_4B
Posts: 30
Joined: Fri Sep 28, 2018 12:29 am

Re: London Dispersion

Postby Manas_Varma_4B » Sun Dec 09, 2018 2:15 pm

In the case of a bigger atom, there are more electrons so the greater area can mean that London Forces are stronger than Dipole-Dipole


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