I sometimes just watch this video to relax. It's like watching Picasso draw The Hay Wain all over again. It has to be the best explanation of equilibria I've ever seen. I almost expect the video to reverse sinusoidally as it reaches its own equilibrium and then asymptotically slow down...
Teacher of the year 198x worked in the room next door to me in Thailand - and he showed me this - and I realized that I had never really understood it till then!
1) it is good you thought it was dye ;) 2) if the forward and reverse rates are equal the amount of reacts and products do NOThave to be equal. Imagine 2 rooms connected by a revolving door. Assuming people are leaving and arriving at the same rate the rooms do not need to have the same number of people in them.
I never thought I would be able to get a high score in Chemistry SL because our school gave us AP textbooks... Thank you so much for all of these videos!!!
Thank you so much for making these videos! I understand it took a tremendous amount of time. They have helped me learn all of the important concepts and I feel like I understand now! I just wish all of the SL Chem videos could be done before the exam but that would be impossible =(
mate, this is amazing work you have done. I'm a chemistry teacher in NZ right now, but super keen on getting into teaching the IB course which is a bit daunting at the moment but i'm a sucker for a challenge. I'm gonna follow all your vids that's for sure;)
Didn't realize you taught at UNIS, i used to go there but now am at UWC atlantic college. a teacher from my old school is literally saving my ib. Thank you Richard.
@@ibchemvids Yes, I use this in my lessons and it is always great. A little tweak I've made is to add a little bit of blue coloured dye to the products pot. That way the two pots also become the same purple colour when you reach equilibrium too.
your videos are so helpful...and you kind of have exactly the same sense of humour as my chemistry teacher...and also his predecessor...must be a chemistry thing :)
Ok so i found a new way of learning for IB chem 1) Watch Mr Richard's video on specific chapter 2) read pearson textbook 3) practice question (Mr andrew does that) 4) Question bank
How to reply to haters: "You will not understand this, I have taught it for the past 30 years...it is too complicated" Richard Thornley: "You know what I think of when I hear that? One sig fig" *Mic drop*
wait. you said reaching equilibrium doesn't indicate that there is the same amount of products and reactants but the IB is going to tempt us with that? I thought there would be the same amount of products and reactants and they coexist
This might be a bit philosophical, but aren't "reactants" and "products" actually kind of arbitrary names, given the fact that two reactions actually occur simultaneously? :) Greetings from Finland!
i actually too alway read the descriptions, so hope you're not balding too quickly. maybe, once you reach and equilibrium there'll be a reverse reaction too
![7.1/R2.3.4 Apply Le Chatelier's Principle [SL IB Chemistry]](http://i.ytimg.com/vi/xQ19LBdoLis/mqdefault.jpg)
![7.1/R2.3.4 Apply Le Chatelier's Principle [SL IB Chemistry]](/img/tr.png)
Chemistry used to make me want to openly cry all the time but thanks to your videos i only want to cry some of the time thank u so much
Cheers - I put a lot of time into these - it is nice to know that they are hydrophilic for your tears!
I sometimes just watch this video to relax. It's like watching Picasso draw The Hay Wain all over again. It has to be the best explanation of equilibria I've ever seen. I almost expect the video to reverse sinusoidally as it reaches its own equilibrium and then asymptotically slow down...
Teacher of the year 198x worked in the room next door to me in Thailand - and he showed me this - and I realized that I had never really understood it till then!
1) it is good you thought it was dye ;)
2) if the forward and reverse rates are equal the amount of reacts and products do NOThave to be equal.
Imagine 2 rooms connected by a revolving door. Assuming people are leaving and arriving at the same rate the rooms do not need to have the same number of people in them.
I never thought I would be able to get a high score in Chemistry SL because our school gave us AP textbooks... Thank you so much for all of these videos!!!
Leonie Dupuis Ouch - that is a shame and I think something to complain about. AP chemistry and IB chemistry text books are NOT interchangeable.
We use high school chemistry textbooks smh
By the way - isn't it a isolated system if there is no energy transferred?
THAT DEMONSTRATION IS SUCH A CLEVER WAY OF EXPLAINING EQUILIBRIA!
Thank you so much for making these videos! I understand it took a tremendous amount of time. They have helped me learn all of the important concepts and I feel like I understand now! I just wish all of the SL Chem videos could be done before the exam but that would be impossible =(
a saviour you are,thank you so much these were truly helpful
I have IB exams in a few days and started studying with your videos from scratch and you are an absolute life savour thank you so much
Don't forget the past papers - Andrew Weng does those!
such a brilliant demonstration mr.thornley, thank you very much!
mate, this is amazing work you have done. I'm a chemistry teacher in NZ right now, but super keen on getting into teaching the IB course which is a bit daunting at the moment but i'm a sucker for a challenge. I'm gonna follow all your vids that's for sure;)
glad I can help. when I started teaching 20 years ago I had some great people helping me but if you are alone and new that has gotta be tough.
Didn't realize you taught at UNIS, i used to go there but now am at UWC atlantic college. a teacher from my old school is literally saving my ib. Thank you Richard.
Really great video. I'm using it to teach Chemistry for the new ATAR national curriculum in Australia.
Good luck fellow star! Try it yourself - I always works. Avoid beakers with big lips.
@@ibchemvids Yes, I use this in my lessons and it is always great. A little tweak I've made is to add a little bit of blue coloured dye to the products pot. That way the two pots also become the same purple colour when you reach equilibrium too.
Fun stuff for IB Mocks revision. I off my cap to you good sir. ~random IB student
You are so amazing! I wish my science teachers should be more like you!
This is such a a helpful way at looking at equilibrium!
your videos are so helpful...and you kind of have exactly the same sense of humour as my chemistry teacher...and also his predecessor...must be a chemistry thing :)
Ok so i found a new way of learning for IB chem
1) Watch Mr Richard's video on specific chapter
2) read pearson textbook
3) practice question (Mr andrew does that)
4) Question bank
Sounds great. The text book has too much chemistry in it - beyond the syllabus - so keep an eye on that.
@@ibchemvids that's also the another i watch you :) xd
@@ibchemvids What textbook do you recommend for SL?
@@HardikKundalwal probably Geoff Neuss
@@ibchemvids couldn't agree more, his chem guide is exceptional
How to reply to haters:
"You will not understand this, I have taught it for the past 30 years...it is too complicated"
Richard Thornley: "You know what I think of when I hear that? One sig fig" *Mic drop*
so this is what the legend looks like
Brilliant analogy! Thank you so much for your help!
This is so simple and brilliant.
wait. you said reaching equilibrium doesn't indicate that there is the same amount of products and reactants but the IB is going to tempt us with that? I thought there would be the same amount of products and reactants and they coexist
sir, nice analogy...can i use it to teach my students☺️
Yes, sure
Thank you so much Richard for your videos ! it really helps me for the ib exam! GBU!
Why do you use 2 different size beakers?
May I ask where you teach Mr. Thornley?
This was so helpful! All your videos are but especially this one :)
This might be a bit philosophical, but aren't "reactants" and "products" actually kind of arbitrary names, given the fact that two reactions actually occur simultaneously? :)
Greetings from Finland!
best explanation ever
Excellent video like always! :D You explained it perfectly!
i actually too alway read the descriptions, so hope you're not balding too quickly. maybe, once you reach and equilibrium there'll be a reverse reaction too
YOU SAVED ME THANK YOU
Smashing demonstration you need to teach how to teach!
Good Job! i really like ur videos.
yup, but you have got to call the something!
THANK YOU SO MUCH OH MY GOD YAY I'M NOT GOING TO FAIL.
Thank you so much for your videos:) They are so helpful!
I teach at the UN school - about 40% American
I disagree with it being arbitrary because not all reactions have a reversible reaction. So that's probably why.
Technically he said "over 30 years" which means the fewer than part of the uncertainty isn't possible. (0:16)
I read all of the descriptions! xD
WOW the explanation!!!!!!!!!!!!!!
just kidding! you were saying the concentrations, not the volume. I understand now.
cheeky bugger! ;)
Smashing :D
Amazing.
So your from England but teaches in America right?
Smashing.
kumpi tuli ensin, muna vai kana?
*SMASHING*
smashing
It's like a magic trick:,D
i find this topic the easiest
Come to my school plz, ill give you a dollar
:)