Dipole-dipole forces | Intermolecular forces and properties | AP Chemistry | Khan Academy

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Dipole-dipole forces occur between molecules with permanent dipoles (i.e., polar molecules). For molecules of similar size and mass, the strength of these forces increases with increasing polarity. Polar molecules can also induce dipoles in nonpolar molecules, resulting in dipole-induced dipole forces.
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Опубликовано:

2 фев 2020

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Комментарии : 19

@megumi.2825 2 года назад

Notes 🗒 **Dipole-Dipole Force** Only occurs in polar molecules Created by equal but opposite charges separated by short distances Stronger D-D -> Higher Boiling Point -> Lower Vapor Point - Molecules that have strong attraction need more energy to make them boil. **Hydrogen bond** (polar molecule) - Specially strong D-D force When H is attached directly to F, O, N (large electronegative diff) Example) HF, H20, NH3 (Very polar molecules)

@mabby9051 5 месяцев назад

Thanksss

@ksaii2358 4 года назад

I havent done this in school but when I do I will have an idea of how to do it🙃

@armandofernandez6772 4 года назад

Incredible explanation as always. Thx for sharing.

@lrm9298 4 года назад

You explain these concepts so well

@MyOwntuahur 4 года назад

Thanks for this useful post..

@afazmohammadtopsir8971 4 года назад

Thanks for this useful post❤❤

@sciencenerd7639 2 года назад

great explanation

@itselix_ 4 года назад

HEY IM ACTUALLY EARLY

@socrates685 4 года назад

Please complete India class 12 physics 1. Gauss Law 2.Solid State (Chemistry )

@KevinEPerez-ds6rv 4 года назад

👌

@Thundrain 2 года назад

2:50 Dipole-dipole [F]

@monishagseervi4527 3 года назад

Thanks

@xiaog9201 2 года назад

Would Acetaldehyde also have hydrogen bonding since the hydrogen from other Acetaldehydes are attracted to the oxygen ?

@ThinkingRed09 Год назад

This is late but no, although there is an O in the molecule, the H is bonded to the C instead. The strength of hydrogen bonds come from its polarity (the difference between electronegativity). So true hydrogen bonds can only occur between H and F, O, N (otherwise the difference is too small). TL;DR: For hydrogen bonding, H must bond to F, O, N. It is bonded to C.