Van der Waals vs Dispersion Forces

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Divya Pimparkar 1E
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Van der Waals vs Dispersion Forces

Postby Divya Pimparkar 1E » Sun Nov 11, 2018 3:52 pm

How are Van der Waals and dispersion forces the same?

AustinGrove3B
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Re: Van der Waals vs Dispersion Forces

Postby AustinGrove3B » Sun Nov 11, 2018 4:04 pm

They are all interactions that give rise to attractive forces.

305113590
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Re: Van der Waals vs Dispersion Forces

Postby 305113590 » Sun Nov 11, 2018 4:05 pm

The names of the two are synonymous (Van der Waals= London Disperson Forces). They are both intermolecular forces found everywhere. They occur when an electron cloud of one atom is heavily dense, while the other doesn't have a lot. This creates a temporary attraction between each other that are relatively weak case by case, but it can be strong when there are a lot of Van der Waals interaction happening. Such an example where they are strong is with the gecko.

Elizabeth Kim 4E
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Re: Van der Waals vs Dispersion Forces

Postby Elizabeth Kim 4E » Sun Nov 11, 2018 4:07 pm

They are both intermolecular forces that are relatively weak

Moryel Yashar 1J
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Re: Van der Waals vs Dispersion Forces

Postby Moryel Yashar 1J » Sun Nov 11, 2018 4:09 pm

London dispersion forces are a type of Van der Waal’s forces. These forces always operate in any substance. In general, the heavier the molecule, the stronger the Van der Waal's force of interaction.

Cienna Henry 1J
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Re: Van der Waals vs Dispersion Forces

Postby Cienna Henry 1J » Sun Nov 11, 2018 4:14 pm

Moryel Yashar 1J wrote:London dispersion forces are a type of Van der Waal’s forces. These forces always operate in any substance. In general, the heavier the molecule, the stronger the Van der Waal's force of interaction.

So the two terms aren't completely synonymous? A London dispersion force is a type of van de waal's force but not vice versa?

Moryel Yashar 1J
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Re: Van der Waals vs Dispersion Forces

Postby Moryel Yashar 1J » Sun Nov 11, 2018 4:26 pm

Cienna Henry 1J wrote:
Moryel Yashar 1J wrote:London dispersion forces are a type of Van der Waal’s forces. These forces always operate in any substance. In general, the heavier the molecule, the stronger the Van der Waal's force of interaction.

So the two terms aren't completely synonymous? A London dispersion force is a type of van de waal's force but not vice versa?


Correct. There are 3 types of Van der Waals forces: Dipole-dipole forces, dispersion forces, and hydrogen bonding.

Dispersion forces exist between nonpolar molecules.

Estelle Jung
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Re: Van der Waals vs Dispersion Forces

Postby Estelle Jung » Sun Nov 11, 2018 4:27 pm

There are two different types of Van der Waals forces, which would be London Dispersion forces and stronger dipole-dipole forces.

Arshia Ramesh 1G
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Re: Van der Waals vs Dispersion Forces

Postby Arshia Ramesh 1G » Sun Nov 11, 2018 11:13 pm

London dispersion is one of the types of Van der waal forces.


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