11.1 Intermolecular Forces | General Chemistry

Chad provides a comprehensive lesson on Intermolecular Forces and how they affect the bulk properties of liquids and solids. The lesson includes definitions and descriptions of Hydrogen Bonding, Dipole-Dipole Forces, London Dispersion Forces, and Ion-Dipole Forces. The lesson also expounds on how greater intermolecular forces lead to higher boiling points, higher melting points, higher enthalpy of vaporization and enthalpy of fusion, greater viscosity, greater surface tension, higher critical temperature and pressure, and lower vapor pressure. Finally, four examples of ranking intermolecular forces are worked out for the student.

00:00 Lesson Introduction
00:51 What are Intermolecular Forces?
03:00 Dipole-Dipole Forces
05:35 Hydrogen Bonding
10:33 London Dispersion Forces
14:10 Ion-Dipole Forces
17:13 Intermolecular Forces and Properties of Liquids
23:07 Vapor Pressure and Boiling Point
26:14 Ranking Intermolecular Forces Example #1
27:54 Ranking Intermolecular Forces Example #2
30:12 Ranking Intermolecular Forces Example #3
31:28 Ranking Intermolecular Forces Example #4

[MinhLe-sv]

Thank you very much, I just clicked on all the other intermolecular forces videos on YouTube and feel so tired and bored. Then I found your video, very helpful and easy to understand! Thank you one more time legend :D

[andremejia]

Started using Chad's Prep in the Spring but skipped summer semester. Now that I'm back for Fall semester, it's good to see my ole pal Mr. Chad and his awesome t-shirts

[YuLanTyara]

Thank you so much for such a comprehensive video!

[AmberLanding]

Give me what out of the oven or freezer!?!?!?!

[Naz-us]

This was so helpful. Comprehensive and accurate. Thank you.

[elidaalba]

This video made me understand IMF more than my textbook and every other youtube video I've watched - thank you so much for proudcing this!

[gloryikuku]

Thank you very much for this great video

[timothywheeler]

high elevation cook-books, cool -> ha

[DennisSeasock]

Damn, brother. I have a small presentation due in 3 days and with your help, I will for sure be getting an A! Your explanations are very concise and clear to understand. Please do not ever stop lending a helping hand. Phase diagrams, here I come!!

[SakeenaManzoor-uy]

Sir can l never hear before that electrons which are in continuous motion in an atom stopped suddenly . Sir is it possible that the electrons got freeze in one side of atom???

[EmberNieht]

Thank you so much Professor Chad. God bless your soul. You are saving many students out there, including me in Chemistry.

[johncarr]

Great stuff. Thanks.
Editing in 'area' totally caught my attention (great idea) and then...
I loved when it said 'area' on your head.

It's the small things in life.

[SakeenaManzoor-uy]

Sir you are awesome l can't define your teaching method , the best method 😊😊😊😊

thank you
Very easy to understand and your presentation is awesome, Looking to more lessons.

[NickSember]

According to the vapor pressure/ boiling temp graph, as vapor pressure goes up, boiling point goes up. I am confused how the molecules with stronger IMF have a higher boiling point but a lower Vapor pressure according to this graph? Time in video is around 26:30 onward

[SakeenaManzoor-uy]

Sir the thing which I am talking about is LDFs ( London Dispersion forces) sir you have released this video 2 yers ago in 2021/2022 it is about IMFs

[SakeenaManzoor-uy]

Sir why you are saying that the things which we cook at the top of mountain takes a greater time to cook as at the top the atm is also lower and so we also need low temperature to cook it so why it should takes a long time to be cook proper???

[milliebenitez]

Can you break down how you found the molecular weight

[siril]

As a matter of fact, I do like them crunchy😂