Equilibrium: Crash Course Chemistry #28

[@crashcourse]

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: apple.co/3d4eyZo Download it here for Android Devices: bit.ly/2SrDulJ

[@life42theuniverse]

3:52 'everything that happens in one direction happens in other direction' ... 'other direction' maybe a good name for a boy-band.

[@asterism_s]

i know you said on every episode

[@kalielaine2328]

The more you learn about chemistry, the more you realize what you previously knew was wrong.

[@georgeabreu6392]

Kali Elaine That quality is true for all knowledge though.

[@MohammadBilal-xt2xh]

Basically an outcome of every science course I have taken haha.

[@hayhayhayhello8607]

George Abreu All knowledge except for math. Math dont lie. 😂

[@essentiallifter]

from a certain point of view...

[@yvettevillanueva4665]

Kali Elaine true

[@clairefagan7597]

You know you're screwed when not even Hank Green can help you

[@arhmlmao]

true words have never been spoken before mate.

[@josephharding9795]

Good thing we never truly get screwed then bc I feel like Hank brings us back from the brink of failure no matter what

[@georgedestino4788]

I read this as Tom Hanks

[@TheMrzippie]

I have a test about this in like 2 hours.

[@cittykat19]

+TheMrzippie me too, but tomorrow this just helped a lot

[@theduh1011]

College final in 20 minutes :(

[@PhuongTran-yq8mj]

+theduh1011 How did you do?

[@theduh1011]

Phuong Tran I got a B somehow, so I guess it all worked out well in the end!

[@PhuongTran-yq8mj]

+theduh1011 That's great. This also helped me for my final yesterday.

[@hanzycake]

You guys are the only reason I'm not failing most of my classes...

[@brpannier6828]

Same

[@pavulurisridevi7846]

Hannah Smith

[@pavulurisridevi7846]

Hannah Smith

[@jyrahlyndenoya1815]

sana ol😂

[@PaulCharvet]

I love how Hank slips in philosophical life advice while ostensibly talking about science. -- "Equilibrium isn’t about staying the same all the time; it’s just about keeping your balance as your circumstances change."

[@KodiaxeMusic]

"Perfectly balanced, as all things should be." -Thanos

[@leewalden3061]

the beginning of this video is actually infinity war. lmao

[@whitneykaye]

Thanos is a master chemist

[@willbanyard3480]

Cramming for chemistry tomorrow?

[@flow1465]

Science is the only subject which allows you to use your imagination, don't spoil it by cramming.

[@rockercaterrorencountered4924]

Science is the only subject that allows you to use your imagination? What about English? Art? I like science as much as the next guy, but that statement was more than a bit off.

[@elainewei309]

You know me too well

[@firstdictonary]

Cramming for the Final.

[@Hudaaaaaaaaaaa]

For my final exam... pray for me

[@AwesomeSpyro]

I'm doing A Level chemistry and my teacher rushes through the topics so fast that a lot of it just goes straight over my head. Here its all covered in one 10 minute video. This is simply golden. Thank you so much Hank. I really needed this :D

[@Fenrick]

hey there cutie

[@aniakonopka8958]

I’m revising this for my GCSE’s nahh

[@sychomadman]

This is truth. XD

[@Ezad99]

So how did u do for your A levels

[@innocentboyzthegreat]

Jokes on you Chem quiz, this KZbin channel exists.

[@xBustedHeart]

Man you just saved me from putting a lot of shit answers in my exam.

[@lolochan6645]

XD

[@xBustedHeart]

Anonymous Loli nah you got this

[@LucyOswinSpence]

My teacher spent around 4 lessons trying to explain this to me and she still failed, you've done it in ten minutes! Thanks guys!!! :D

[@VarshiPyndanna]

Dear Crash course, I'm in my final year of schooling and I'm actually not sure when exactly I started to watch these videos but y'all have been incredibly helpful throughout my years of school. From the bottom of my heart, thank you so very much ❤️

[@SofeaAmizi]

God bless your kind soul, Hank Green. I needed this.

[@별토깽-d1m]

Me too!

[@ComplexCarmine]

I suck

[@ComplexCarmine]

God isn’t real

[@AA-ge6vo]

@@ComplexCarmine lol

[@chelleloreto]

I let myself get so behind on Chemistry lectures at uni that I'm now basically teaching myself 4 weeks' worth of content lol. Thanks so much for your videos, guys, here's hoping I get through the exam in a month's time cos right now I wouldn't understand most of it!

[@anxiousartist7401]

who else is here because of corona-issued online school!

[@unitedstatesofamerica6192]

me. unfortunately

[@mackinglikemylifedependonit]

Chill😭

[@lishalini4116]

Me🤚🏻

[@cjanunobi1800]

✌🏾😙

[@novanotfoundyt]

Me

[@UmarTahir]

It was the greatest day of my life when my Chemistry teacher showed us a lesson from my favorite youtube series. So awesome.

[@ximenam.9236]

I love how I'm cramming for a chem 2 test tomorrow and I'm focused, then he says one direction and in the corner of the screen is a one direction concert going on, now there is a concert in my brain.

[@22453790]

This cannot have come at a better time. I have a chemistry test on equilibrium tomorrow. Thanks soo much crashcourse

[@aprilsonline]

A quote from chemistry that pertains to lived life: "Equilibrium isn't about staying the same all the time; it's just about keeping your balance as your circumstances change."

[@2berrykool]

seriously thank you for your videos I got an 88 on my last exam where the average was at a 68... next exam t-minus 2 weeks and final the week after

[@twaal22]

Wish you the best!

[@sanahita9678]

I have a major Chem. mock test tomorrow, and I'm resorting to these videos as my final study session! xP

[@shirubionicle]

+Wishbone K. Luck Good luck man

[@johnweasly8915]

Lol, who’s here because they have an chemistry/science exam?

[@amritshergill9130]

Gonna fail tomorrow rip

[@shyamtripathi6817]

Me

[@thomremo3978]

Just here for fun

[@SuperSox97]

I applaud you two for having a debate so intelligent and devoid of hostility. I found it very interesting to read through it, and I'm glad to know that there are people on the internet that can intelligently discuss subjects (especially ones like global warming and starvation) without raging at each other.

[@sherripy3932]

I swear it is not even funny how much your videos are helping me with my chemistry class. I'm studying for my last test (tomorrow) and looking over the homework packet(which i did not do) i realized that I know absolutely NOTHING!!! But watching these videos make everything a LOT easier! I cannot thank you enough for making these videos! I am so grateful to you!

[@pete8420]

Thank you for your videos! My chem/bio teacher left my school and was replaced by a teacher that doesn't appreciate those who have more visual and pattern thinking minds, so I'm glad I can still pay attention to these.

[@alyssan6800]

Hey Hank, you know what would be awesome? If you could do a series on Physics *insert excitement*. Your chemistry videos have helped me so much!

[@khhtutor]

Applause and applause. SAT chem teacher from Taiwan🇹🇼

[@alyssaalcantara6739]

I love learning while being entertained by his creative analogies ☺️

[@waynasattar2991]

So much to say: 1) I love how there's a variety of classes on Crash Course. 2) Bless Hank for making me less stressed with all the sarcasm and light jokes. I love how he does that. 3) A request: Could you please do a video on the Contact Process for manufacturing Sulfuric Acid? THANK YOU

[@rainyxyz]

watching crash course chemistry 4 hours before my chemistry exam ~_~ heh

[@PrimadonnaGirl95]

Hope your passed :D

[@rainyxyz]

***** thank you! i have another one tomorrow hahahaha

[@lorddio2572]

samieuu bet that stanks bigtime

[@prakharlondhe3876]

***** away????? :P ;)... juzt joking sammieuu :D

[@firstlygaming]

I'm doing the same right now XD

[@rachaeldaley8173]

This is the best equilibrium video, I have a Chem test tomorrow and trust me I was so confused. Good Job as usual guys!!

[@wulf4785]

I cannot stress how much of a help this video and channel are to my grades and life. I could not make AP Chem possible without this content thank you so much!

[@Avoug]

When you think he already explained everything there is to be explained, but it turns out to be just the intro :')

[@GabeNewellDFTBA]

That part where Muldoon from Jurassic Park got wrecked by Predator was funny. Thank's hank.

[@RabiRose]

Hank, I love that you consistently seem to have what I'm looking for

[@shirubionicle]

why isn't there a crash course physics channel?? this is a question ive been asking since da beginning of time XD.

[@JTan-wu7wg]

+Shriram Raveendran Don't know. Probably because CrashCourse tries to fit everything in around ten minutes. Physics, I assume, needs more time than around ten minutes.

[@JTan-wu7wg]

Gunbnelch Maui Yea. I'd usually watch CrashCourse in junction with Khan Academy and Bozeman Science.

[@shereitograce7844]

+Shriram Raveendran I would totally watch that so hard.

[@airro3672]

Physics = Brightstorm. Chemistry = Crash Course. Biology = Bozeman

[@arousedsquirrel2429]

+Gunbnelch Maui Khan could explain what he waists 10 minutes on, in at least half that time.

[@quintoncraig9299]

I forgot this channel ever existed, I loved you guys. I still love you guys, I just forgot you were on youtube...

[@PowerWillful]

Fun isn't something one considers when balancing the universe. But this... does put a smile on my face.

[@grantdirienzo9965]

I knew the textbook answer for how pressure effects equilibrium, but seeing it in your animation made it actually make sense to me. Thank you!

[@kashshk845]

i love how im casually revising, watching crash course to actually understand chemistry and then obviously ONE DIRECTION, why dont them lads leave me for a second to focus IM SHOOK

[@DannyandPatty]

6:12 'Fritz is a fry shop in Vancouver, BC.' I got excited at that point. Thanks for mentioning us Hank!

[@andyablett1466]

Fantastic job team Crash Course... you guys continuously make highly informative yet fun videos!

[@nikithap8]

The way you described pressure's effect made so much sense!! Thank God for this channel

[@_ashyou]

Nikitha P. Me too found these all videos helpful, For math I watch on mathbff it is great channel too!

[@tacos394]

Oh hank, thank goodness crash course exists :) I love this so much!

[@domnugreen9471]

yuppy

[@MsAfricaaah]

U R DA MAN!!!! I love ur enegry and u explained in an easy and funny way. U just made my life easier. May God bless u

[@R0ck4x3]

I love watching these videos, so many nerdy references in the little animations, like the Predator in the intro to this video.

[@arathisuraj856]

Love this channel! I am thirteen years old and I can understand everything!!

[@feeltheshadow6959]

Did anyone think about making a whatsapp group before about chemistry exams? u know to help each other out

[@oneeyedeagle549]

Feel The Shadow I will agree

[@sahilsea1161]

Me too

[@averysandoval541]

Feel The Shadow we have one!!

[@nikhilkhatri9556]

@@averysandoval541 please add me my no. is 7398410534

[@gafaru6702]

@@averysandoval541 pls add me 0246709145

[@SmileyFacesUnite]

Okay, these videos are pretty much working through the chemistry syllabus for HSC in New South Wales, Australia. This would have been so helpful last year.

[@bestenoyan4128]

Love Crash Course Chemistry! Very helpful and very intriguing

[@harleyquinnwastaken]

Generally - Increased concentration moves the system in the opposite direction, Increased pressure moves the system to the side with the fewest gaseous moles, And increased temperature moves the system in the endothermic reaction. (The reverse is true for each statement.)

[@ttam809]

AP CHEM STUDY PARTY 2k16

[@ttam809]

Well, it was worse than the AP gov exam...

[@limeducky0209]

+ttam 809 hah try IB chem

[@learival1912]

Try EB chem -_- , at least you guys have textbooks

[@BottleofDreamswastaken]

SL or HL? :D

[@vanessaa.2130]

How difficult is ap chemistry? I was going to do physics, but I'm not sure.

[@AsifAli-yg8kc]

had wasted years understanding this in class but now... its like crystal clear..love yáll.

[@sydneypage6447]

Theres def gonna be a big equilibrium problem on the ap exam so im here 3 hrs before it!!

[@CanduPalacios397]

You guys have saved me so many times, and you continue to do it. I don't know how I could ever thank you enough.

[@aasthasharma3820]

subscribe? like? donate monthly on their patreon page? subscribe to their other channels? like other videos? donate monthly on their other patreon pages?

[@ansonchin5674]

AP Chemistry tomorrow anyone feel me...

[@Asilts]

D-day is upon us

[@PhotoEdgic]

+Anson Chin Really not looking forward to this.

[@aadi.p4159]

boii u dont even knw. my exams make me wish i was in AP chem

[@juneltulalian866]

Anson Chin actually I got chem IB

[@TheReMorseCode]

Thank you Hank I love your hand gestures and of course your blazer but what I love most of all is your zest for life. As I lay in my bed on the verge of tears before exams you’re the only man on this hell website that does not make me want to put myself in a forever coma and drift into the bay letting seagulls destroy my bloated corpse

[@miaeriu]

literally same

[@apsanders9359]

Thanks for the video and all the other awesome videos! However, there is an issue with the concentration vs time graph around 3:15. The change in concentration should be the same as the stoichiometry ratios. I realise the y-axis has no scale but I think it is still a relative scale and probably needs to reflect the 1:3:2 ratio of the equilibrium equation.

[@parissitzoukis2919]

this is fire 🔥 🔥 damn love it

[@bolb6000commenterlol]

9:32 the way I learned it in College General Chemistry II (2nd semester of General Chemistry) is that heat is on the products side (+ heat)

[@stephbatomalaque1859]

I will consider you as my online chemistry teacher. Thank you sire :D

[@SusieeeeeeQ]

thank you so much! i did not understand this at all and now I GET IT!! who needs school when you have youtube?

[@jackburns3618]

Hank, don you know what we do with liars in chemistry 2:55

[@helloelsie]

Thank you so much omg. I have a test tmr and i learn better watching your videos than class....

[@daviddibari812]

Where has this been all my life

[@DefeatBean]

In a cupboard, under some stairs.

[@ninjabreadgirl]

this video is Harry Potter?

[@adweitaspams]

helped a lot. thank you so much!!!

[@sebastianwilde7415]

Thanos be like: Perfectly balanced as all things should be.

[@liamgallagher1476]

thanks for teaching an entire chapter in ten minutes that my teacher couldn't explain over the course of two weeks

[@Mangoroni_7]

So...does Hank's shirt say energy or nerd?

[@skelosgaming3312]

that, my friend, is up to imagnation

[@AbhayKumar-cm2kh]

+Isabelle Cross definitely nerd.

[@ravindr22]

+Isabelle Cross nerd obvi

[@ahugefrickingturtle1824]

+Isabelle Cross both

[@humixmusic4lyf]

+Isabelle Cross says nerd

[@atusnae]

This has helped me so much, I have been completely baffled by equilibrium until now. Thank you Hank!

[@tanzilzubairbinzaman8711]

Is is bad that the only thing going through my head is that Thanos would _love_ this class?

[@blakeb4490]

Honors chem final in 2 days. I have watched like 20 episodes over the past weekend

[@dantea.1877]

Men... this videos ARE GREAT!!!!!! THANKS!!!.... and please... keep doing it!!!!.... also, I enjoy the biology ones too!!

[@awesomesheen]

Equilibrium was one of my most favorite topics in AP Chem!

[@coldweatherart]

Watching this video is way better than reading a textbook. I should get rid of my textbook in favour of these videos XD

[@RodeyMcG]

I love the Thought-bubble-John cameo at the beginning. And with Thought-bubble-Henry! :)

[@seamie6644]

Well, Hank talked about pressure and temperature can change the side of the equilibrium reaction, so how about volume? does it affect too?

[@alysiastringer5610]

volume is the same as concentration which he discusses at the start...

[@GhastlyDesigns]

NIGIHAYAMI Kohaku Nushi Pressure and volume are inversely proportional according to Boyles law (Decrease volume, increase pressure). If you decrease the volume, it's expected there will be more collisions between the particles and the wall of the container. Therefore it will increase the pressure within the container making the system favour the reaction with less particles to get back to equilibrium. It's also good to note that concentration is directly proportional to pressure, so if the pressure increases; so will the concentration...and volume will decrease (because it's inversely proportional to pressure). :)

[@seamie6644]

GhastlyDesigns how can I forget about Boyle's? So stupid of me! Thanks anyway :)

[@GhastlyDesigns]

No worries :3

[@jesse5052]

I have watched this video so many times now over the last 2 years. I didn't really notice until I came in and knew exactly what the first two sentences were before he had even finished them :)

[@leewalden3061]

This video inspired Thanos. Congrats Hank.

[@keeleybreklyn]

You guys are wonderful! I always watch Crash Course to help understand my online classes! Thank you! (:

[@arathisuraj856]

Hank, what do we do with liars in chemistry? As you nicely put it, we kill them. Right, Hank?

[@simonnance]

Best Crash Course Chemistry episode in a while. You cover the basics well without trying to do Kc calculations in the same video.

[@remittri]

gonna watch these videos properly in the summer when I dont have an excuse for skipping 90% of the videos since Im only on GCSE

[@meows6811]

same my exam is today rip

[@remittri]

+9m_amara I hope it went well? xD

[@meows6811]

+AppleEncore i just got home. The first paper was great then the second was ok. Fortunately the haber process came up

[@remittri]

+9m_amara Yeah same for me. All that quantitative chemistry revision for such a simple calculation to come up!

[@meows6811]

+AppleEncore rightt. I revised the titration calculations too :(

[@yarriamapirate]

you are SAVING MY LIFE dude. metaphorically.

[@fariamahmud3198]

Would you please talk a little bit slower?You are disturbing the equilibrium of understanding talking too fast! :P

[@samyak3251]

Really!!!:(:(

[@doorknob4781]

You could change the speed of the video, you know. :3

[@fariamahmud3198]

True that though! :P

[@nadza3265]

i sped it up, too slow

[@Josiahhhhhhh]

M8 this is crash course not safe course lol...he does talk really fast though, but he’s fitting 1 or 2 class periods worth (at least in my AP Chem class at school) of info into 20 minutes.

[@kittylove199]

omg, i love u so much right now. I have a chemistry exam on tuesday, and i have to cramp everything in two days, cause before tht i had a math exam, and i was stressing over tht, so i didn't even look at my chem notes. But u just made my life easier, i failed this unit, and i wish i had found u when i took my unit test, then i would never of failed. Thank u so much!!

[@abs_nobody]

1:18 where's hank

[@shantyjaison1663]

Mizzing probably... Hahaha

[@miaeriu]

i love hank green so much i hope he is happy and eating good and is getting enough sleep and is well hydrated

[@faithpatterson2721]

How was the AP Chem exam?

[@UgoMazier1704]

Man you're awesome !! Thank's so much for making this video !

[@tourmaline2228]

when you have a online test in less than 30 min and crash course is your only hope =]

[@RedRaven95]

Wow, this video literally explained how equilibrium works without confusing me. This video is going to help me write my discussion essay for "Separation of Cations". Thank you!

[@EveryBulletCountsInc]

I have a extra credit question that I simply cannot find it is who was le chatalie's high school principal? Thanks in advance

[@SUPD100]

What kind of sick fuck asks that kind of question.

[@EveryBulletCountsInc]

my crazy chem teacher let me guess its just a trick question and he never went to high school just straight to college?

[@EveryBulletCountsInc]

so how do i answer this question?

[@MortRotu]

Phew!, glad none was taken. Thank you for an interesting debate :) Hopefully bump into you again!

[@aeroscience9834]

How can you calculate wether or not a particular reaction is reversible?

[@TristanThurlow]

Aeroscience You don't, there is a symbol -the two arrows- that indicates it.

[@Mandragara]

***** Ummm, no? How do you think they know when to use that symbol to begin with :P

[@xboxboy93941]

Aeroscience You would likely have to determine that experimentally or use your conceptual knowledge of chemistry. As far as I know, there's no math involved and thus no way to "calculate" if something is reversible or not.

[@boygeniuslego]

+Aeroscience you use gibbs free energy. look it up

[@xboxboy93941]

To clarify my point, Dan's mention of Free Energy is pretty much the only way to determine reversibility mathematically, but that would require experimental determination beforehand of the Gibbs values. Just so nobody gets confused, that's more or less what I meant. You could look up any chemical property and calculate other things based on that, but much of those properties are determined from experimentation.

[@ramyshaalan53]

Crash course is a true life saver

[@yokkaofightteam]

Is he hinting that he supports Liverpool? :DDDD

[@yulookinman2422]

thanks this helped me out a lot

[@llmagruder1]

AP Chem 2019 !!

[@novanotfoundyt]

M M why are everybody in ap watching this I’m in regular class and my teacher is making us watch this

[@lazyboy395]

The best way to study for a tea you have RIGHT tomorrow is to listen to a KZbin video with a quirky guy surrounded by atoms and weird clay sculptures using a lot of funny animations to explain stuff that your monotone teacher just makes boring. Thx for this vid