London Dispersion Forces & Temporary Dipole - Induced Dipole Interactions - Intermolecular Forces
This chemistry video tutorial provides a basic introduction into london dispersion forces also known van der waals forces. London dispersion forces arises from the electrostatic interactions between temporary dipoles and induced dipoles. A dipole is a polarized particle that contains a separation of charge - one part of the particle is partially positive and the other part is partially positive. Polar molecules contain permanent dipoles. Nonpolar molecules do not usually contain a dipole moment but can become a temporary dipole due to the distortion of the electron cloud. Atoms and molecules with a large number of electrons are highly polarizable, that is, they have a higher probability of turning into a temporary dipole. A dipole can cause another molecule to turn into a temporary dipole. This is known as an induced dipole. The interactions between temporary instantaneous dipoles and induced dipoles are known as van der waals interactions or london dispersion forces. Large molecules have a high amount of london dispersion forces and therefore have higher boiling points than smaller molecules. Boiling point is directly related to the amount of van der waal interactions among molecules.
Lewis Structures - Mega Review:
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Hybridization of Atomic Orbitals:
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Molecular Orbital Theory:
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Dipole Dipole Forces of Attraction:
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Hydrogen Bonding:
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London Dispersion Forces:
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Ion Dipole Forces:
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Who else has a test tomorrow?
@RVAN-OFFICIAL
3 жыл бұрын
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@abdullahalajeelalaskar1464
3 жыл бұрын
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@RVAN-OFFICIAL
3 жыл бұрын
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@santicruz4012
3 жыл бұрын
First o chem test tomorrow, wish me luck!
@abdullahalajeelalaskar1464
3 жыл бұрын
@@santicruz4012 good luck g
This guy explains more things in 11 minutes than what I studied for 2 hours at school, and even more clearly
@oceanau9958
Жыл бұрын
exactly! omg
@mask9269
2 ай бұрын
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@koala1578
3 жыл бұрын
hope it went well, 2 am study sesh is not it
@KillaKelzz
3 жыл бұрын
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@wamzyz1239
3 жыл бұрын
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@rosette_renah
3 жыл бұрын
How did it go?
@jessicadu6103
3 жыл бұрын
@@KillaKelzz good job, you got a 3 at least u survived
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@robertowisconetti2732
4 жыл бұрын
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@bharatmalhotra1880
3 жыл бұрын
Simp
@mitth_raw_nuruodo
3 жыл бұрын
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This video is 4 years old and still helping. Thank you soooo much
@fernando3061
Жыл бұрын
I mean it's chem dude the principles are the same...I don't see what 4 years has to do with it.
I actually had zero idea about is the LDF , now it makes much more sense thanks from the heart
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Repetition in the description of partial positive... the latter should have been partially negative. To all those who may be confused And To Mr Organic Chemistry Tutor I highly appreciate your work
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@kevin-mj3ms
3 жыл бұрын
weird
Very Helpful Video! Will help for my upcoming exam. :)
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@loki4034
2 жыл бұрын
I just started IB HL Chemistry and I already feel like I'm going to end up with a 5
@Melopingon
Жыл бұрын
@@loki4034did u get the 5?
@loki4034
Жыл бұрын
@Melopingon switched to a levels c; and yeah my IB Chem predicted grade ended up being a 5
The explaination is great and clear.
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So ldr only occurs in between diatomic molecules is it?
This helped me get ahead of the class!
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I think the temporary polar molecule induces the other molecule due to dipole moment which pushes the electrons in the induced molecule not because the electrons are attracted to the positive charge of the inducing molecule as they should have been more attracted to the positive charge of the induced molecule as it is nearer
Thanku sirr you just the concept is clear........
this is such a great video, thank you.
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either im stupid or yall in the comments are hella smart because i still dont understand anything and im failing my test tomorrow :)
@thepixelgamer3d913
3 жыл бұрын
No your just dumb asf, if you cant understand this basic topic as for the studies ahead of you, ur fucked !
@littleunicorn6573
3 жыл бұрын
you've should watched all his intermolecular forces videos to grasp a better understanding
@QweRinatrtY
3 жыл бұрын
the ones that are dumb are the ones who are claiming you are dumb for a comment you made 10 months ago
@thepixelgamer3d913
3 жыл бұрын
@@QweRinatrtY says the guy who just replied to it, Makes you even dumber !
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Hi, why cycloalkanes have higher boiling point and greater LDF compare to chain alkanes?
@michaelayeni177
4 жыл бұрын
Electron delocalization?
Well explained.
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Thank you my guy
Thank you so much it helped me alot
Thank you so much. My chemistry professor just rattles off facts and says words without actually explaining anything. Like if your going to say “dipole” 1000 times in the lecture, atleast explain what that word means and how it happens! This vid helped so much
@ANB2743_
8 ай бұрын
Facts bro
Thanks alot sir!
Can induced dipoles be considered temporary dipoles as well?
@sohailabbas6882
4 жыл бұрын
Yes, cauz when we take away the non-polar atom away from polar atom,induced dipole will be vanished.
Wonderful
finally i get it !!!!!!!! thx dude
I really didn't get the part where the atom becomes a dipole, why did the electrons become 8? Where the atom before the atom that is being a dipole has 6 positive and negative charge.
@myt9921
4 жыл бұрын
i think that is Delta symbol
@MrAsif173
4 жыл бұрын
the delta symbol with a positive means that one side is slightly positive whereas if it has a negative symbol near it, that side is slightly negative
Which have more solubility in water Dipole dipole molecule or dipole induced dipole?
@aaravjalan8806
11 ай бұрын
dipole-dipole because it occurs in polar molecules and water is a polar molecule. therefore molecules with dipole-dipole interaction are more soluble in water
How you say that Bp for neo pentaine less than pentaine and you write the Bp for neo pentaine 94 and pentaine 36 ?? and thanks
@Ten-ol7nc
5 жыл бұрын
محمد جهاد he said 9.4
Not even quizlet is half as good as you, I'm so glad I came across your page!
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very helpful!!!
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To the Organic Chemistry Tutor 🍻
Thanks sir
You forgot to mention why boiling point of noble gases increase with the decrease in electrons
God bless you
Thanks
4:11 thank youuu
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I don't even know why this video has a dislike
Thx
You'd think more surface area allows more heat to be absorbed, but apparently not
@tompickering6626
4 жыл бұрын
It's because intermolecular forces occur on the surface of the atom or molecule, so the larger the surface area the more room for the intermolecular forces meaning a higher melting and boiling point.
Nicee
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Tomarrow is my annaual exam of chemistry
saved my chemistry grade
Why are you so good?😜
you wronged F2 electrons is suppose to be 81 not 18
I'm here cause I have an oral exam today and I forgot how to explain dispersion forces
Are we all doing some last minute revision??
God bless u how like this comment
Me whenever watching before my exam mom takes my phone 😑
Quiz starts at 2pm and its 11: 32am
Is there a subject in chemistry this man doesn't cover
The notion that the more electrons you have will increase the probability that 1 side will be unevenly distributed seems counterintuitive. For instance, if you flip a coin twice the chances of getting heads 100% of the time is relatively high (let the coin represent helium with only 2 electrons and heads represent the electrons existing on the same side of the atom). Whereas If you flip a coin 53 times (like iodine) the chances of getting heads 100% of the time (or anywhere close) is very low. Therefore the more electrons an atom has should increase the likelihood that the electrons are evenly distributed the majority of the time as a % value, which in turn should lower the LDF of the atom?
@weeztalks
2 жыл бұрын
It might be because helium has low numbers of electrons so the nucleus can attract them and keep them evenly distributed. Unlike Iodine which has 53 electrons so for e.g if a polar molecule comes near it Iodine nucleus will have a hard time attracting all the electrons and keeping them in their place.
how old is this guy xD
Goat
I have a report tomorrow
Why do we learn this stuff in 10th grade
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