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Thermodynamic versus Kinetic Control

  Рет қаралды 57,077

Michael Evans

Michael Evans

Күн бұрын

Пікірлер: 40
@vasanthakumarg4538
@vasanthakumarg4538 4 жыл бұрын
Crisp and clear explanation of concepts, well done and thank you
@sarahholland5980
@sarahholland5980 4 жыл бұрын
this made so much more sense than my professor or textbook. thank you!!!!
@jkpp.
@jkpp. 10 жыл бұрын
Thank you so much. It's rare when I get that, "FUCK, I GET IT NOW" feeling. The clear explanation is much appreciated.
@joenyc
@joenyc 13 жыл бұрын
you rock. thanks for the AMAZING explanation. i was clueless about the difference. now it all makes so much sense!
@sciencenerd8879
@sciencenerd8879 8 жыл бұрын
Life makes sense again. Thank you!!!
@oguzcangokce6959
@oguzcangokce6959 2 жыл бұрын
Thanks for the brief and clear explanation!
@mevansthechemist
@mevansthechemist 2 жыл бұрын
You’re welcome and thanks for watching!
@chiman3778
@chiman3778 5 жыл бұрын
I just wanted to thank you for putting this together
@razasyed575
@razasyed575 2 жыл бұрын
my main man micheal evans coming to the rescue thank you!
@danielgladish2502
@danielgladish2502 4 жыл бұрын
Great explanation. What I don't understand is how the factor reaction time works? Like why does the kinetic product eventually convert into the thermodynamic product? No new energy is added to overcome the larger activation energy barrier of the thermodynamic product. Thanks!
@mevansthechemist
@mevansthechemist 4 жыл бұрын
Great question! You're absolutely right that no new energy is added, but keep in mind that the distribution of molecules in the reaction changes over time. It's all based on relative activation energies. Early in the reaction we have mostly the starting material (SM), which converts mostly into the kinetic product (KP) due to the lower activation energy leading to it. A little bit of thermodynamic product (TP) forms. Now, if we focus on the activation energies of the REVERSE reactions, we see that the KP reverts back to SM faster than TP. Thus, KP will eventually be funneled to TP due to its greater rate of reversion to the starting material.
@adosar7261
@adosar7261 4 жыл бұрын
If we change the temperature doesn't delta G of both reactions change? So how do we know that after changing the temperature p1 isn't more thermodynamicaly favorable than p2?
@jameelsahadath217
@jameelsahadath217 9 жыл бұрын
how is kinetic control used to affect the outcome of a chemical reaction where several reaction paths are available
@panoskb9405
@panoskb9405 7 жыл бұрын
If you have a reaction that A+B->C, and it is only reversible then the only conclusion that you can make is that is kinetically controlled right?
@mevansthechemist
@mevansthechemist 7 жыл бұрын
If the reaction as a whole is reversible, it's thermodynamically controlled, not kinetically controlled. "Reversible" in essence means that the forward and reverse reactions are proceeding at equal rates; i.e., that the reaction system is in equilibrium (caveat: this is the organic chemist's "back of the envelope" definition. The definition in physical chemistry is more rigorous.)
@Hands4Surgery
@Hands4Surgery 12 жыл бұрын
Is your activation energy correct? (0:20 - 0:25) I think activation energy is the whole value from the energy level of the starting material, all the way up to the peak of the transition state. Your second (right hand side) activation energy seems correct proceeding from left to right.
@mevansthechemist
@mevansthechemist 7 жыл бұрын
Good question-for anyone still confused by this, note that the graph is showing two different reactions proceeding outward from the center. Thus, two separate activation energies are shown.
@redarmuhammad1953
@redarmuhammad1953 10 жыл бұрын
very nice explanation.. Thanks
@Elevatone
@Elevatone 11 жыл бұрын
What organic chemistry software is that? Link please?
@sanadaltarawneh3550
@sanadaltarawneh3550 Жыл бұрын
Good stuff
@aoifewest
@aoifewest 10 жыл бұрын
Great presentation. Thank you very much?
@zaya421
@zaya421 3 жыл бұрын
I still can't get it.. 😢
@saritar8819
@saritar8819 10 жыл бұрын
Thank you for simplifying it!
@ruthmasih9047
@ruthmasih9047 2 жыл бұрын
amazing! thanks so much.
@parkjane116
@parkjane116 6 жыл бұрын
This helped a lot. Thank you so so much.
@RBaleog
@RBaleog 13 жыл бұрын
Good explanation, thanks!
@skyyward111
@skyyward111 9 жыл бұрын
Thanks a lot! Very helpful!
@Aryan_sg
@Aryan_sg Жыл бұрын
Thanks bro 😉
@FatimaSayes-en5bc
@FatimaSayes-en5bc 6 ай бұрын
Finally i understood.
@camichael74
@camichael74 11 жыл бұрын
Thank you! great video.
@TheBitili
@TheBitili 14 жыл бұрын
Great,,,
@mmarycalvin6395
@mmarycalvin6395 11 ай бұрын
Thank you.
@davidbohadana8274
@davidbohadana8274 10 жыл бұрын
Grate job!!!
@jingyiang9786
@jingyiang9786 4 жыл бұрын
CN2116
@anoopkumarsonar1001
@anoopkumarsonar1001 8 жыл бұрын
Thanks Bro !
@LunaDanu1
@LunaDanu1 8 жыл бұрын
thank you
@arqumabdullah2462
@arqumabdullah2462 3 жыл бұрын
whose here from AAMC C/P SB #20
@Ace0077
@Ace0077 11 жыл бұрын
thanks, helped
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