Liquids: Crash Course Chemistry #26

In this episode of Crash Course Chemistry, Hank gives you the low down on things like London Dispersion Forces, Hydrogen Bonds, Cohesion, Adhesion, Viscosity, Capillary Action, Surface Tension, and why liquids are just... WEIRD!

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
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TABLE OF CONTENTS
London Dispersion Forces 3:18
Dipole-Dipole Forces 4:45
Hydrogen Bonds 5:29
Cohesion 7:57
Adhesion 9:24
Viscosity 8:41
Capillary Action 9:03
Surface Tension 8:10

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[crashcourse]

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! 

[LNGBW]

Solids and gasses exist at either extreme end of the temperature/pressure spectrum.
 
Liquids exist within only a small temperature range, that varies dependent on their composition.
 
Thus:
 
Liquid = rare
Solids/gasses = common

[sydneysmith]

I have a friend who had a spoon made of gallium, he had a mold for it and everything. He'd stir it in warm water to amaze/freak people out

[hari-krishnakoipallil]

"Also, I should've mentioned. I am a trained professional idiot, do not do this at home."
I love you Hank

[AbooRasta]

MONGOL MONTAGE IN CRASH COURSE CHEMISTRY ?!
My life is now complete ^_^

[Manabender]

1:50

Trained professional idiot?

Where do I go about applying for that job?

[Conglomeration]

"I'm a professional trained idiot" no, you are a scientist haha

[SirNeutral]

When Hank wrapped up the gallium and asked "what's warmer than the palm of my hand?" my first thought was that he was going to place it in his pants. True story.

[WWIIAMAN]

3:22 Hank... Don't you know what we do with liars in Chemistry? 

[tobycurrie]

Liquids are so much rarer because the temperatures at which they exist are very few in comparison to a solid or a gas. For example, liquid water only exists at 0 to 100 degrees Celsius. Whereas Ice is from 0 degrees all the way to absolute zero, and water vapor can exist anywhere above 100 degrees.

[j.m.h.]

Anyone else notice he's wearing a CGP Grey T-shirt?

[shreyapatel]

Thanks CrashCourse for helping me pass my AP exams and making me laugh at the same time!

[adambates]

About to start Organic Chemistry in less than a week and it's been 3-4 years since I (religiously) studied Chemistry...talk about needing a crash course. Thank you, Hank & Co, for helping me along all these years and for making a channel that is equal parts informative, visually engaging, and humorous/light-hearted enough to enjoy the whole channel.

[rjmayo]

Thank you for giving a simple definition for viscosity, it took me almost a year to fully understand the definition in my textbook.

[XPimKossibleX]

since there is a very low minimum for temperature for objects to be liquid, and an infinitely high maximum for them to be gasses, while there is a relatively small and quite finite range for them to be liquid, a range which rarely overlaps with others since it is so small, and that's why you wouldn't find a planet where all the elements were liquid, although you would all solid or all gas.
the range is not small as some physical property, but for the same reason it is nearly impossible (or perhaps infinitesimally possible?) to land on a whole number when picking one out randomly on an infinite number line.

[Winter_Blood]

Procrastinating homework by watching chemistry yay!! #nerdlifebitch   

[disaidra]

If you put the video on half speed or quarter speed hank sounds stoned and it makes the first part of this video very hilarious 

[danielnewsome]

OMG Mongol Montage! Haha best moment of Chemistry Crash Course c':

[MrClivesinger]

Hank, great video! I work in fluid dynamics and know full well how weird liquids are in the scheme of things. One thing that you could have maybe gone into more detail on is why there aren't intermediaries between liquid and gas. It isn't immediately obvious why water has to be one or the other, and not in between. Also, I'd like to see a video in the future on complex fluids with both solid and liquid properties. Ketchup, custard, silly putty and glass deserve some more attention. Kyle :)

[luckwinvarghese]

To summarise.
There are more solids than liquids, and more liquids than gases.
higher the density of the liquid than the container higher the convexing,
lesser the density of the liquid than the container higher the concaving.
Gravity at a non-classic physics level.