Activation Energy
HTML-код
- Опубликовано: 14 окт 2024
- 039 - Activation Energy
In this video Paul Andersen explains how the activation energy is a measure of the amount of energy required for a chemical reaction to occur. Due to the collision theory the activation energy requires proper energy and orientation of the colliding molecules. The Maxwell-Boltzman distribution can be used to determine the number of particles above and below this point.
Do you speak another language? Help me translate my videos:
www.bozemanscie...
Music Attribution
Title: String Theory
Artist: Herman Jolly
sunsetvalley.ba...
All of the images are licensed under creative commons and public domain licensing:
"Reactions & Rates." PhET. Accessed October 20, 2013. phet.colorado.e....
Sharayanan. English : Depicts the Main Idea Behind the Kinetic Theory of Gases - That Is, Gases Are Made of Molecules Whose Permanent Hits on the Walls of the Container Is Perceived as Pressure, and Whose Excitement Is Related to Temperature., August 8, 2007. Own work. commons.wikimed....
Bro your a legend, 6 years later and this is amazingly useful!!
i was forced to study biochemistry & hated it beyond comprehension ... mostly on a practical level, not the material itself. med school was never gonna happen & i have no science classes in my life anymore ... yet constantly think about these theories & apply rate determining step/ energy of activation to everything lol
As always, Mr Anderson is saving my life in college. Especially for online classes.
COLLEGE?????? IM DOING THIS IN FRESH HIGHSCHOOL😭😭😭
@Mahmoud Hasan 6TH GRADE??????? IM DOING THIS STRAIGHT OUT OF MY MOTHERS WOMB CURRENTLY SITTING INSIDE AN INCUBATOR
@Mahmoud Hasan 6TH GRADE???? IM DOING THIS FRESH FROM THE 2ND GRADE
@@weitao100 2ND GRADE??????? IM DOING THIS FRESH OUT THE WOMB 😭😭😭
@@focus0100 Relatable
You deserve much more views, sir! Thank you for another great video.
@@arabicromanticsong4980 what the heck dude
This was massively helpful! My textbook and professor were confusing but this was so clear and straight to the point. Thank you!
Thank you Bozeman Science for helping me through my first college bio class!!! I go to lectures, and then if I'm confused on a topic I watch your videos and it helps me! Thank you!
10/10 explanation
Cleared a LOT of confusion thank you so much
Thank you, you describe things in a easy to digest way and you're straight to the point.
This is possible the best explanation ever heard in regards activation energy. Well done mate!
This video is top notch.
I mean you are the BEST. 👏🥺 i swear you are better than my chemistry teacher by 100 times.. 💯💜
English is my second language but I can understand it so clearly!!! Thank you so much
The activation energy for the "endergonic" (or endothermic) reaction is incorrect. Activation energy is the energy difference from the REACTANTS to the "top of the hill", not from te products as this video shows.
I think there was a mistake at 1.00. The activation energy of the forward reaction should extend from the energy level of the reactants to the peak. This is right only if Mr. Anderson was explaining the activation energy of the reverse reaction.
@@roshanthomas2761 Yes , he made a mistake .
Just found out , how much simpler my life would have become, with this guy as my Chemistry teacher .
The activation energy is not drawn correctly on the endothermic reaction at the 1:00 minute time point in the video. It should be all the way from the reactants to the top transition state.
GIVE THIS COMMENT SOME LIKES. SO THAT PEOPLE DON'T MAKE THAT MISTAKE IN EXAMS
no im pre sure its right.
Yup
this is reverse reaction, its valid
:/
Excellent. I went from confusion to understanding in about 3 minutes. Many thanks. 👏👏👏
yo this was useful AF! Thanks for it mate!
Agh shit ik im just dumb but i didnt understand a thing here 1:20
You threw out so many unfamiliar terms i just exploded, trying to decipher what you were saying even though its english and english is my first language ;-; What is orientation? Unimolecular? Biomolecular? Termolecular? Background molecules???? Other molecules?
MAXWELL-BOLTZMAN DISTRIBUTION I WANNA CRY LMFAO
All those terms are found in the previous video Elementary Reactions, I'm too lazy to link it lmao
All I understood was orientation which basically means the aligning of the molecules. They way they're put together.
Clear explanation.
Thank you
your incredible and thank you so much for your time to help others with their struggles.
I got crystal clear explanation
You are awesome thank you teacher ❤
Short and to the point I Love it. Yet I do not think it is for the novice aspiring Chemist. may want to do some additional Studying , but this video is a great reference and reinforcement, also provides great visual aids with a comprehensive explanation. .. I know run on sentences. I'ma chemist for christ-sake not an english major
This is really great. Well explained in short time. Thank you sir ❤
I'm drowning in biochem. I know this video is specific to chemistry, but we're doing activation energy with polysaccarides. Is this relevant to that? Amylose and amylopectin in starch 1-4 and 1-6 a-glucosidic bonds via amylase enzyme, but what causes the condensation and hydrolysis reactions, is it activation energy such as the one in your video? Thanks in advance :)
Every reactant atom must overcome its activated energy before chemical reaction can take place. Why? The outer portion of an atom is the electron-shell that filled with stationary electrons. When two reactant atoms are approaching one another, their like-charged electron-shells will repel one another and they need to have sufficient kinetic energy that we called activated energy to overcome such repulsive force between them before they can fuse together to form a product. Therefore this is why every reactant atom has its own activated energy. Why catalyst can lower the activated energy has not being fully explained? An catalytic atom will make temporary bonding with the reactant atom first that will cause its nucleus structure to flex slightly differently in which this will also re-orientate its edgorbtoslengths or orbitals that making them conducive to make bonding with other reactant atoms now to produce products easier. As soon as reactant atoms reacting under the influence of the catalytic atom where the temporary bonding between the reactant atoms with the catalytic atom will be cut off immediately. Therefore the catalysts can hasten the reaction between reactant atoms where they themselves will not being consumed in the chemical reactions. This is how and why catalysts manage to lower down the activated energy of a particular chemical reaction! If you are interested in real discoveries, I would recommend you to read my book, The Unification Theory - Volume One and you will be amazed with lots of new, interesting discoveries. In God I trust.
It has got to do with the collision theory. According to the collision theory, reactant particles must collide with the sufficient activation energy and at the correct ORIENTATION (how electrons/dipoles line up) to begin the reaction. A catalyst does two primary things:
1. it lowers the activation energy by forming an "intermediate" with the reactants in the transition state of the reaction (when bonds are broken and made)
2. it orients reactant particles correctly so that successful collisions are more likely
This is easier to observer in biochemical catalyst (enzyme) models, because the enzyme protein binds with the reactants:
study.com/cimages/multimages/16/lock_and_key.png
@@aryaadami welp , that's practically what was said in the video about the collision theory -implicitly- ... he's just explaining why does it need 'activation force' in the first place ... i don't know about the catalyst
very informative, thanks so much for the insight 😄
Thank you! This video answered all my questions
This is so helpful!! I was a bit confused when I didn't understand but now I do!! Thank you so much!!
note:actually the enzyme lower the activation energy so reactions can take place at body temperature.
4:04 It's strange when it shifts, the curve changes its shape. Why? Why did the curve stretch and not simply slide along the x axis (energy) Is there some distortion or properties caused by increasing the temperature?
good explanation thanks more..,
This is really owesome Thank you professor.
Thank You....❗❗❗
You such a Smart Guy
keep Rocking Like this🔥🔥
That was helpful! Many thanks
Sir what is difference between activation energy and bond energy?
Very helpful thank you sir
Now I have one reason to like Bozeman ;) Thanks! from Missoula
i don't think using the ball analogy was suitable as the constant state at just simply higher height should have been addressed with its equivalent in the reactants or more accurately how what does it represent hence the addressed feature used between the two concepts isn't similar , however the rest of the video is just great ... as usual
Thanks dr. brother 🌹
Thank you ... the video is so helpful
thnku professor
So enjoy your videos. Thank you so much.
Thank you for what you do!!!
Nicely done- easily one of your best videos.
Excellent videos.
Best explaination sir thanks a lot for this video.
It was definitely helpful
Thank you so much
That was very helpful
I Stan mr. anderson
that was really helpful
thanks sir
Great presentation !!! Awesome videos :)
Thank you!!!
Nice job!
At 3:44 it felt like the placement of Ea was arbitrary, but it wasn't explained that way.
love u paul
I don't understand. Why would an endergonic reaction need activation energy? If the reaction needs energy to occur period, then why would it also need activation energy?
THANK YOU SO MUCH!!!
Legend videos
this would have been nice for my test last week -_-
It is really useful!
Thank you so much.
Hi! What did you use to edit this video?
Awesome 😎.thanks
great video
great sharing thank you !
Thank you sir. I just had yo subscribe☺
Thank so much😘😘😘
Hello Sir, can you please suggest how to calculate the activation energy of copper
Yep. Cool. So chemical reactions can be written as a algebraic equation, or perhaps something similar. Most of such equations that I've seen over the years in books have the activation energy written in the form of a little triangle below the equal sign. So you might think to rearrange the equation so that the triangle is written on the right side of the equation. and if there are several reactants you might further think to just heat not all of the reactants on the right side of the equation to well above the activation energy. Leading to a higher yield? So heating up some of the reactants and then tossing into a beaker that contains the other right side reactants and hopefully presto, the reaction and a higher more complete left side of the equation and the cited yield. So Chemistry is not only a science and it can also be a business. So a higher yield for the same amount of effort? Ka-ching!!
I know I’m late but thank yooouuuu
Can I know the software?
Like you great videos!
Wonderful
Amazing
what is difference between activation energy and threshold energy? On Maxwell-Boltzmann curve you plotted Ea, isn't that threshold energy, instead of activation energy?
Hmmm
M Pere no they are not
Love that
Yes sir it is very helpful thanku sir
For a reaction, specific rate constant at 283 K is 2.5 × 10-6
L mol-1
s
-1and at 293
K is 4.25 × 10-5
L mol-1
s
-1.Compute the energy of activation of the reaction.
Please someone let me know the solution....m stuck :(
Good explanation,,,
Sir can activation energy be zero?? Everybody is answering differently and its very confusing.
How decreasing the activation energy the rate is increased?
Helpful!!
plz tell me what is different between threshold en. and Ea en.
But sir why do activation energy is needed for reaction??
so by giving energy he means "giving"(= increasing) heat....right?
L R yes, heat is energy. 😊
can we call the activation energy as the energy required to break the bonds
ahamed akmal no, more like : minimum amount of energy to start a reaction
ahamed akmal shut the fuck up
@@nimachangizi4412 what's wrong?
Ur videos r amazing!!! (Y)
Its helpful
This is kind of better than khan academy
I am not into this stuff, but I must say you did a great job =)
do we need activation energy in every. Reaction??
Belê beguman
WHAT HAPPENS TO THE GRAPH WHEN THE CONCENTRATION INCREASES... SOMEONE TELL ME PLEASE
you must yeet it
thankyouuuuuu
Hi! I am a Hong Kong people and i wanna translate your video into chinese subtitle and upload to my channel. Will you mind? Thanks anyway!
Subscribed! ^_^.. you deserve it :)
what scienses do you like ?
What simulation are you using in this video?
You can always find links to the resources I used in the video description below.
THANKS
Savior!
mhm!!!!!!!!! i agree if you hit it right it comes back....................