The Equilibrium Constant
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- Опубліковано 6 лип 2024
- 065 - The Equilibrium Constant
In this video Paul Andersen defines the equilibrium constant (K) and explains how it can be calculated in various reversible reactions. The equilibrium constant is a ratio of the concentration of the products to the concentration of the reactants. If the K value is less than one the reaction will move to the left and if the K value is greater than one the reaction will move to the right.
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Artist: Herman Jolly
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"File:Lightning Hits Tree.jpg." Wikipedia, the Free Encyclopedia. Accessed January 2, 2014. en.wikipedia.org/wiki/File:Lig....
"File:Nitric-Oxide-3D-vdW.png." Wikipedia, the Free Encyclopedia. Accessed January 2, 2014. en.wikipedia.org/wiki/File:Nit....
"File:Phosgene Poster ww2.jpg." Wikipedia, the Free Encyclopedia. Accessed January 2, 2014. en.wikipedia.org/wiki/File:Pho....
"Reversible Reactions." PhET. Accessed January 2, 2014. phet.colorado.edu/en/simulatio....
"Reversible Reactions." PhET. Accessed January 2, 2014. phet.colorado.edu/en/simulatio....
This guy is single-handedly keeping my GPA in equilibrium.
K
+MegaCadette55 HAHA
LOL, dude said "1.0" lmaoo
Lol I wish I could be as creative as u guys in comments
This thread 😆
you were there for me when no one else was
Lol
Omg yes
I commented this in undergrad and as a now medical student I can honestly say you are still there for me when no one else is
Steffy Martinez queen
@@soccerismylife514 ohh how cute
One thing missing: solid and liquid exceptions.
Was just looking for this to confirm it's real, should be higher in the comments
solid and liquid should not be included in the equilibrium because only gas has pressure.
Others should know👍
@@Kim-mu7gw This is what I was looking for thank you!!!
@@Kim-mu7gw wait what about aq?
How can he explain things so fast but so well?! Keep up the amazing work Mr Andersen you're the best!
Thank you soooooo much!!! I love the way you simplify complex concepts and I love the stimulations! I think everyone should watch your videos and benefit from them!!!
Thank you Mr. Andersen, your videos are wonderful!
Does Kc value tell about the reaction rate???
No it doesn't. Only the concentration of reactants and products. If it's >1 that means there are more products than reactants. We also say that the equilibrium lies on the right. When its
@@thisisnotmyfinalform7856 No, it doesn't. It tells us whether we'll have more products or more reactants when we reach equilibrium.
love this guy's teaching, especially his concise yet detailed explanations. thanks Paul.
Thank you for helping me through chemistry's difficult concepts. I feel hopeful even when things are hazy in class as I know I can look up the concept on your channel and find clarity! Cheers to you for sharing your knowledge and gift as a teacher!
Wow thanx for a beautiful lecture. Never knew the meaning of K value. No chemistry book has shown such simplified meaning.
I watch your videos all the time, and I would just like to thank you for taking the time to post them. You are an excellent teacher, easy to follow and understand. Once again thank you so much!
Perfect. Just what I needed to share with my students while teaching from home. Thank you for all you do!
dude i fucking love you
First your videos helped me with AP biology as a senior in high school. Now they're helping me with chemistry in college. I love these.
Thank you sir. Simple, effective, insightful and fun. Just what education should be.
Thank you for the videos! Really clarified important concepts!
Very helpful! I learned this a week ago and completely forgot the concept. After watching this video however, I was able to jog my memory!
Didn't take chemistry yet, but still understood it. Thanks for the extra knowledge!
you are super helpful man bless you and all the generations that come behind you!
Thank you Mr. ANderson...I have watched your videos lately and I really learned a lot
Your videos are so helpful! Thanks so much! Keep up the good work.
Thanks! You make the whole thing very understandable.
Of course that was helpful...thanks! You are the best, Andersen..
is it the same if it ask you to writ an equation for equilibrium constant for forward reaction
I wish he would have covered how to calculate the equilibrium constant...
me too man, me too
Products/reactants
Equilibrium constant uses molarity so before you set up the equation you need to balance the equation, find the molarity of each product and reactant. Then you set up an equation that multiplies the molarity of all the products with exponents that are the coefficients in the reaction. This has to be over the molarity of the reactants multiplied together with exponents that are the coefficients. Should look like this:
(C)^c(D)^d
-----------------
(A)^a(B)^b
If Keq < 1 it favors reactants in the left direction. If Keq > 1 it favors products in the right direction.
By the way solids and liquids are not in the equation.
Bro I a mega test tomorrow and hace to learn this in 4 hours
@@frodobaggins7227 the molarity, Why multiply without adding up?
can you please explain it for me
Equilibrium constant (K) is equal to (C)^c x (D)^d / (A)^a x (B)^b. There is an invisible multiplication sign in the middle, so you have to multiple the molarities/concentrations of the products and divide that over by the molarities/concentrations of the reactants to get K. (And you get molarity by using C = n/V)
thank you so much but i have a question! we dont write the liquids and solids in the equation becuz it doesnt affect the concentration but what about aqueous substances? do we include them in the equation? does it affect the concentration
Always enjoy these videos. I am still confused on one thing. At nine minutes during an ICE table the change in H2O is shown as .038 mols. The initial value is zero and the equilibrium value is .138. So why is the change not .138?
Thanks Mr.Andersen this is really helpful
Mr. Andersen saving my but again. First in high school now in my senior year of college.
mr anderson can you do more practiced questions and examples please???
can you do a video on how to find the equilibrium constant in electrolysis
Thank you! K>1,P>R,arrow points to the right indicating a right shift while K
hi
Thank you very much.
You say if Kc is greater than 1, it moves from reactants to the products side. And if the Kc is less than 1, it moves products to reactants. My question is when can we have the equilibrium mixture for an appreciable concentration of both reactants and products ?
The song in the beginning of the video is so cool!
Wow thanks! That was so helpful!
Very helpful. Great job, and thank you!
Great video! I wonder why the temperature has an impact on what will be produced more, the reactant or the product, and therefore, what the K value is. What role does temperature play in the way that at one moment the product can be produced more than the reactant (thus, favoring the forward reaction)? Conversely, how does a lower temperature of the same reaction make it favor the reverse reaction?
Very very helpful thanks... And very easy language....
You're helping me get a degree!
So is the K value the same as Log K? Like when modeling in the GWB, each reaction has Log K values at different temperatures
You teach very well. I like your teaching
Thank you so much I really needed this 🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻
i've been watching your videos since my first intro. chem class a 1.5 years ago. i'm in chem 2 now and you are still doing god's work (i'm atheist btw). can't thank you enough for this invaluable resource, sir
Thanks so much, got Chem sac tomorrow and I finally understand the concept :)
THANK YOU SOO MUCH I LOVE YOUR VIDEOS THEY ARE SUPER HELPFUL
Fantastically explained!
This was so helpful!!
Thank you so much :)
Thanks a lot for your clear explanation!
u r the goat & teach sm better than my teacher thank u sir
Thank you very much for this helpful video!
It was really helpful. keep going!
it really helped me a lot, thank you
What if I'm asked to solve for the Kc and Kp and the given is only the molarities of all the substance given at a certain temperature?
How can we solve units of concentration for the followinv reaction? I have tried so hard on it but couldn't understand that how do we get moldm‐³ as its answer. When nitrogen reacts with hydrogen to form ammonia, the equilibrium mixture contains 0.31 mol dm‐³ and 0.50 mol dm‐³ of nitrogen and hydrogen respectively. If the Kc is 0.50 mol‐²dm⁶, what is the equilibrium concentration of NH3?
Thank you sooooo much, great videos
oh my! thank you sm! hoping it will help me in my prelim exam in cellular and molecular biology!! taking the test in a few! ❤️🔥
man this was soooo helpful! thanks!!
excellent.... splendid explanation
Hi, I just have one doubt: why do we multiply ( the products by the products and the reactants by the reactants) instead of adding, when calculating the equilibrium constant?
This is helpful, thank you!
thank you! it feels like you did it all on one breath though!
If a reaction has a very low K value, would that mean that the reaction at that temperature is non spontaneous as there are very few products. Also, if the k value is very large, would that mean that the reaction is spontaneous as there are many products?
this was just beautiful!!!
thank you so much!!! you are a great teacher!!!!
Time to review ... Thank you for your video.
Very helpful, thank you
you explain WAYYY better than my chem teacher
You sir are a gentleman and a scholar
At 3 min, the expression should be aA + bB cC + dD (missing PLUS sign on RHS)
What if there are solids or liquid in products and reactants . Do I have to put their concentrations in the equation ?
Thank you soooooooooo much. U r an amazing teacher.
Daym every problem I have in chem and physics this guy has already done it
you just practically save my life
That was superhelpful :) Thanks!
Love this. Thank you
Does it matter if the concentrations are in mM as opposed to M?
Thank you! Very helpful!
Thank you Mr. Anderson
And phosgene is made by simply let them sit togheter or ignite the mixture?
Wish they had UA-cam videos when I was in college taking chemistry.
am finally getting smething BOZEMAN yuh the best...thkz alot
+Anthony okpara or that your just dumb and took this guy for u to actually get something and get you to use one of your brain cell on
How does temperature affect the equilibrium constant?
Actually I didn't get u yarrr. How can u explain so nicely... Equilibrium constant was a doubt in my mind for 6 years.. U just cleared in a 6 min.... But u r lilbit fast.. I watched at 0.75X .. it was so helpful... Love u bro 😎. From INDIA 🇮🇳
how do you know the concentration of the substances that youre putting into the K value equation ? is this information usually given ? (high school chemistry btw)
concentration is always given in the question
how do you know which side is the product and which side is the reactant?
That was VERY helpful thx.
So helpful, thanks!
Excellent. Thank you
In equilibrium constant the reaction is reversible hence the double arrows, meaning reactants can be products and products can be reactants. But we try to figure out if we have one more than the other by our constant K. Constant K measures out if we have more reactants or if we have more products at equilibrium. K represents the concentration of our products over our reactants. K>>1 reactant to product, K
4:03 You said "standard temperature and pressure", but then the box said 25 degrees Celsius, which is room temperature. Which did you intend?
overall the chemical reaction's entourage
Great video, very well explained
Thanks a lot ✨ it really helped!!!
It was very helpful sir.
at 3.37 Is H2O taken into account for this equation? I thought this is only for gases and aqueous ?
I already knew how to solve it,but the question that was annoying me was that what is k constant and what does its value represent,thanks very much sir,definitely subscribing👍👍👍👍
can someone help me... if the product I have in the reaction is in (aq) aqueous state, should I leave it out when calculating for Kp?
Syazlina Aasim yes, you only use the gaseous stuff in your calculations :)
Bavley Guerguis Do you mind explaining?
Michael Malize could you please explain
Bavley Guerguis I am not a very bright student. It would mean a lot if someone else were to explain it to me. I'm not able to comprehend from internet sources
thanks mr.Anderson , it was os usefull
Damn this sure was helpful thanks brother
why does only temperature affect k, and not pressure, concentation etc?
is k value given to us on the exam because I cannot find it on my periodic table
Do you have a note version of this?