Heisenberg uncertainty principle | Chemistry | Khan Academy

Definition of Heisenberg uncertainty principle. Calculating uncertainty in position given the uncertainty in momentum for Bohr model of hydrogen. Created by Jay.

Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.

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[JyotiThakurC]

Thanks Khan Academy, your method of teaching is legendary.

[PrincePalmUwU]

Thank you so much for this video as I'am a person with, ''Learning Disability'' going for a career for either EMT-P or Youtuber but EMT-P have a Principles Of Chemistry Math classes which I haven't been taught but since I have that problem (Apparently) you explained everything perfectly for us to understand, Thanks! I will continue to learn from your video's before pursuing my careers further!! :)

[ani-dutta]

I tried to hit the like button as fast as I could but I missed

[Dyslexic-Artist-Theory-on-Time]

It is nice to see 4π representing our three dimensional space!!!
A sphere 4π of probability ∆×∆pᵪ≥h/4π

[tachyonhummingbird]

Does h/4pi tell us the certainty been less greater than to the uncertainty of hx and hp?

[Austin--]

So basically the uncertainty you selected in the beginning for momentum of 10% is not possible because it results in the uncertainty of the position being larger than the size of the electron shell so the uncertainty of the momentum would have to be higher in order for the uncertainty of position to be within the possible size of the atom, is that correct? Because you just chose a random number 10% not an actually measured uncertainty and it happened to not be possible?

[bamitsbaxer]

I round off 2.838 to 3? Like 2.838 ~ 3?
THIS IS BUGGING ME HOW DOES ROUND OFF EVEN WORK

does ∆2 ~3? I mean even if it is equal to 2 ± xÅ? I mean Srsly, man. Heisenberg also said that ñß* { π* × |3 ± 8.7â (â is a vector) }

[delalias]

cant hear the sounds, .. increase the volume

[likhithkunder]

in our we have to actually calculate without the calculator 😢😢

[chssongamber]

why did he divide plank's constant by 4pi?

[albertnortononymous]

At some point, it seemed like he was confusing p (position) with ρ (momentum).

[gertythpon]

So basically what you're saying is none of this makes any sense? Looks like I'm on the right page then.

[rakhshandamujib]

I just sometimes wonder, what would I do had Khan Academy not been there.

[chancesire]

For me, only quantum mechanics makes sense 😂

[nicholaspetrish]

h/2pi is Planck's constant. h/4pi is incorrect.

[FugieGamers]

This isn't chemistry, it's quantum physics

[iraseidman]

When you double the radius from 5.3*10^-11 you get 1.06*10^-10 which should be 1.6*10^-11!

[delalias]

cant hear the sounds, .. increase the volume