Bond Length and Bond Energy

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052 - Bond Length and Bond Energy
In this video Paul Andersen explains how the bond length and bond energy are calculated using an energy distance graph. The strength of the bond is determined by the charges in the constituent atoms. As the charge increases the bond energy increases and the bond length decreases. Increasing numbers of bonds will also increase the energy and decrease the length.
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Title: String Theory
Artist: Herman Jolly
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All of the images are licensed under creative commons and public domain licensing:
Cdang. Deutsch: Prinzip Des Laue-Verfahrens: Ein Einfallender Monochromatischer Röntgenstrahl Trifft Auf Ein Einkristall, Wird an Diesem in Bestimmte Richtungen Gebeugt Und Erzeugt Auf Der Dahinter Liegenden Fotoplatte Ein Beugungsmuster, March 30, 2009. Own work. commons.wikimedia.org/wiki/File:Cliche_de_laue_principe.svg.
"File:Ethane-A-3D-balls.png." Wikipedia, the Free Encyclopedia. Accessed December 15, 2013. en.wikipedia.org/wiki/File:Ethane-A-3D-balls.png.
"File:Hexamethylbenzene-3D-balls.png." Wikipedia, the Free Encyclopedia. Accessed December 15, 2013. en.wikipedia.org/wiki/File:Hexamethylbenzene-3D-balls.png.

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17 дек 2013

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Комментарии : 137

@antiquarian1773 3 года назад

I like to think about bonds as twigs. The shorter the twig the harder it is to break, the longer it is it’s easier to break. The more twigs you have together the harder it is to break. Bond energy represents how easy or hard it is to break the twigs. And obviously the length of the twig refers to the type of bond. Ionic is strong so wigs would be shorter etc.

@rouleit5131 5 месяцев назад

Awesome analogy!

@abirarab9823 10 лет назад

This really helps, especially when you have a test tomorrow lol

@asandantinga4357 4 года назад

That true me too i'm writting tomorrow😂

@Itsspanda 4 года назад

Yes

@slomobro9714 3 года назад

Me to

@НадирТокомбаев 2 года назад

AP bio midterm tomorrow 😅!!! Hi from Kazakhstan 🇰🇿

@Persueurdreams 8 лет назад

3:20 you fucking GENIUS thank you THANK YOU for making that so concise and easy to understand. I could never confirm any of the shit my teacher taught me even though I am fairly intelligent. A few minutes of this, and I understand it more than it took my teacher 40 damn minutes to explain

@dae1925 3 года назад

*RIP LANGUAGE*

@sathwika8305 3 года назад

@@dae1925 😂

@LincolnD_rsa 2 года назад

someone is passionate 🤣

@human-12234 2 месяца назад

You're such a BIG life saver i swear

@imnotlikeothergirls5 10 лет назад

Thank you! This subject has confused me for two semesters but it's much clearer now.

@Ewetubedean 10 лет назад

Thank you Paul, very easy to follow and informative.

@sarahli6425 4 года назад

It is incredible how clear his explanation was, such an amazing teacher

@shafimishtiaq3587 4 года назад

I wish people could just compile the course specific videos from the best channel like this guy, Sometimes a book can’t explain what mr Anderson can

@JohnSmith-fv7km 7 лет назад

God Bless U Mr. Andersen!!

@Andy_Pandy_ 6 лет назад

That was nicely explained! Thanks-really helpful.

@gueuzelambic9787 10 лет назад

Thank you so much for all your videos. Evrything is so crystal clear !

@daynegovindsamy1605 2 года назад

woah dude you must have finished School by now

@simranjoharle4220 7 лет назад

Brief and covered all the concepts...........was really helpful Sir..........thank you

@samamanda9407 3 года назад

Ohh my after so long I finally get it😭thank you so much, may the Lord bless you😭😭😭

@245kenz 6 лет назад

I need this lecturer ! He's so clear

@drmksu38 5 лет назад

3 minute but it is like 2 long lecture . thank you very much .. you help me so much

@claudiahernandez1624 4 года назад

you always come through to the rescue!!!! I am drowning here thanks a lot for the help.

@tinashemuza8671 6 лет назад

thank you for making it concise despite its convolution

@hraqhraq 7 лет назад

Finally education with values which illuminate the facts

@alexvillalobos5312 8 лет назад

Ive been waiting for you Mr Anderson!

@Izenhawa1 3 года назад

Thank you sir I was having this graph in NCERT CLASS 11 AND now I understood what does it totally mean ❤️

@notaidenfromwatchdogo 2 года назад

Pg 118

@craft1234 4 года назад

Thank you for explaining bond energy. I used to confuse in this topic. You clear my all doubts thank you once again 😊

@GJ-iq9cz 3 года назад

Thank you so much! I have an exam in a few hours and you helped me a lot

@terrilee5163 6 лет назад

Thank you so much for the video! Very easy to understand!

@Psyduck007__ 3 года назад

best and easiest explanation so far :)))))))))))

@imani_8021 7 лет назад

I had to watch this 2 times to completely understand but now I finally know what bond energy is!

@bennettbrowniowa 3 года назад

At 2:45, the division of the plane between attraction and repulsion should be a vertical division, with the repulsion at distances less than the energy minimum, and attraction at distances to the right of the energy minimum.

@regiice7579 3 месяца назад

Very Helpful God bless your Energy with higher bond energy with him and shorter bond length

@thefoildesigner 6 лет назад

When I look at the potential curve, I can see that eventually E =0 for r

@GrantSchulte 5 лет назад

I'd just like to clarify: It's not true that the top of the graph is attraction and the bottom is repulsion. Instead, you get attraction where the SLOPE of the graph is positive and repulsion where it is negative! Lower energy is preferred - think of it like a ball rolling downhill... the ball settles at the bottom of the hill... it doesn't roll back uphill! That's why the "pit" represents the bond energy, not where the curve intersects the x-axis. (Yes, the bond energy is NEGATIVE because you lose energy (less energy = preferred) when forming a bond) Hope that helped someone who was confused :)

@GrantSchulte 3 года назад

Yay! Glad I could help :)

@245kenz 6 лет назад

I’m your fan now ! chemistry fan !!!

@bennettbrowniowa 3 года назад

At 1:27: energy doesn't pull. "Pull" of course is force, and force is the slope of energy vs. distance, dE(x)/dx, the derivative of energy with respect to distance. So you can see the quantity of force in the diagram: it is the slope of the graph.

@samsterronie 3 года назад

This was indeed helpful!

@JH-ux1re 2 года назад

Thank you very much! Very clear!

@lelajenkins2123 10 лет назад

bless your soul

@asandantinga4357 4 года назад

Thank you so much for your help

@Caarve 8 лет назад

Thank you for the video! Very helpful!

@bamikuma7684 5 лет назад

THANK YOU, just thank you kind sir

@sunnybunny2521 4 года назад

that was really helpful

@zachreyhelmberger894 7 лет назад

Thank you for this great video!! I have been puzzling over the ATP molecule. Wikipedia says that ATP is fairly unstable in unbuffered water so its bond strength is weak and it hydrolyzes into ADP and a phosphate. But ATP is THE molecule for powering virtually all of life and people say it has a lot of energy stored in it. What is up with that?

@ishmael4489 4 года назад

Nice video, but the idea of attraction and repulsion is not conveyed well and had me confused. The video gives the impression that the attractive force is only present when the energy is < 0 kJ/mol and the repulsive force is only present when the energy is > 0 kJ/mol. This had me wondering why on earth the bond length wasn't at PE = 0. The line seperating attraction and repulsion would have made more sense if drawn in the illustration as a vertical line that intersects the bond length distance. To the left of that line, repulsion, and to the right of that line, attraction. Please feel free to correct my understanding of the topic if I have somehow got this all wrong.

@khillvids3849 4 года назад

Yeah, pretty simple explanations, is helpful

@4mathieuj 10 лет назад

Nice vid as always!

@hlokomani 5 лет назад

Quality content sir, thank you.

@杨笑然-m4b 4 года назад

This really helps, thanks a lot. but I have one question, how to calculate or measure that potential energy and distance by ourselves?

@lakshaysharma6116 8 лет назад

you cleared my concept thanxx

@avnishkumarjain3643 5 лет назад

Should energy not be released when atoms fall apart?

@SpiderShlongGaming 9 лет назад

As always the best chemistry tutor on the internet. So insightful and easy to understand. Thanks a 6.02214e23 :D

@briannahoff8589 5 лет назад

Love this guy.

@marcellevieira3124 3 года назад

It's a such good video

@adosar7261 5 лет назад

how atoms are attracted if are neutral ? also is this potential energy electric potential energy ?

@johnkevin1104 6 лет назад

are we allowed to look at the bond energies of bonds between different atoms and infer relative bond length? for example, if we know that C-O has a bond energy of 358 and O-N has a bond energy of 201, then can we say that C-O will have a shorter bond length between the two because it has higher bond energy? I hope my question made sense

@maria00oo00 4 года назад

Thank you so much

@khanhthita2996 5 лет назад

Thank you professor

@bfurl69 10 лет назад

I wish this Morse potential video came out before my finals!

@joshuabalistreri4703 7 лет назад

I was told though that more of the electrons there's less of a charge because it's giving a charge away kind of like how the Sun works it gives gamma rays away and whenever you have like eight electrons in its full shell then there's at its lowest point of energy?

@Nice69 10 лет назад

Good video!

@diwakarsandeep0 10 лет назад

thanks bro it was helpful

@rambalas5005 Год назад

Helpful.thanks

@92amarjot 10 лет назад

zoo helpful plz keep going!

@AhmedHamdy-ru8gv 10 лет назад

wonderful ........big thanks

@abdulnaserdahbali8922 3 года назад

You are amazing

@yajatyadav3348 6 лет назад

Is there a formula that describes the correlation between bond length and bond energy?

@liliatsubasa 5 лет назад

Thank you for the video

@giadadamiani4453 7 лет назад

Thank you very much!!

@doriangibson8108 8 лет назад

Thanks, that helped alot!

@joshuaotoole1126 7 лет назад

Thank you very much!

@tomsmith4252 8 лет назад

how does the curve change for metallic bonds, im really stuck on this question asking me to sketch the energy-length graph for both metallic and covalent bonds (on the same graph).

@Holagrimola 8 лет назад

but... how do we find it with a given molecule???? you say that electronegativity also plays a role, but how? are there any formular or anything???

@danielkwon3062 5 лет назад

What is the relationship between the Electronegativity and Bond Strength?

@nathanwylie8320 8 лет назад

This helped me so much! My teacher has no idea what he is talking about. :_ (

@hueydo3522 6 лет назад

Br has a shorter bond length compare to that of Re, so Br should have a stronger bond than Re according to the Columbic's law. But in the video, he says Re's bond is stronger. I don't get. Somebody please explain it to me please. Thank you

@sophiaridley7549 6 лет назад

But it's talking about the bond length in context of the distinct internuclear distance of the 2 elements. In Boron, the bond length is more than the internuclear distance which indicates that it's a weak bond but in Rhenium, the bond length is less than the internuclear distance if the atoms are placed side by side, which indicates it's a stronger bond as there are stronger charges connecting the two atoms, which decreases the bond length.

@sandhyarasaili531 4 года назад

How does the bond energy change as the atomic diameter increases?

@benkd7521 2 года назад

The first time watching this video was in the 10th grade, now I'm at university, and I'm back here again.

@adrianapennaferreira9789 10 лет назад

Thanks for vídeo!

@moeedbaloch9581 5 лет назад

Sir why C-C bond length is greater than N-N bond length?

@suzesiviter6083 6 лет назад

Where does the electron get its angular momentum from?

@joshuabalistreri4703 7 лет назад

He sounds right can u tell me if this video is right

@Helios0Nation 5 лет назад

can i ask a question i know that the electron never settles so how did they mesaure the distance between the nucleus and the electron (farthest)

@ebrietas7474 5 лет назад

That’s a good question, my guess is that the electron keeps moving around the nucleus in its orbital but it remains the same distance away from the nucleus no matter where it moves to around it

@Helios0Nation 5 лет назад

@@ebrietas7474 that makes sense thanks

@ebrietas7474 5 лет назад

Helios Nightcore okay, so, I asked my AP chem teacher and he said it’s actually calculated through complex math that even he doesn’t understand the details of 😂 but he said what I said is basically correct as the electrons move around in their respective orbitals, but our understanding of electron location is really just the calculating of statistically where the electron is most likely to be since like you said they’re always moving

@Helios0Nation 5 лет назад

@@ebrietas7474 thank you alot for your help😊my teacher couldnt answer me he didnt know anything 😂😂

@ebrietas7474 5 лет назад

Helios Nightcore no problem!! Are you taking the AP exam? What grade are you in?