Graham's law of diffusion | Respiratory system physiology | NCLEX-RN | Khan Academy

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  • Опубліковано 4 жов 2024
  • Find out whether oxygen or carbon dioxide has a higher rate of diffusion (Hint: It pays to be small!). Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Created by Rishi Desai.
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КОМЕНТАРІ • 72

  • @devadharsan7721
    @devadharsan7721 3 роки тому +19

    Literally I understand these concepts with ease while Khan sir teaches. My school teachers diffusion rate of concepts is 1.17 times slower than sal sir.

  • @guitarmanMD
    @guitarmanMD 10 років тому +52

    If you didn't understand this, just rewind to 8:49, and listen up.

  • @vikramjoshi3452
    @vikramjoshi3452 5 років тому +25

    What? Literally what can I do to reach this level of understanding? This is just an amazing explanation. Thank you and God bless you.

    • @biosavat9475
      @biosavat9475 3 роки тому +2

      True , I'm in 9th standard and Ive heard I need to learn this for JSTSE exam . He explained it really well

  • @talhazafeer9471
    @talhazafeer9471 4 роки тому +4

    No words to praise u sir....u have really hit the nail on the head.....!!!

  • @RonShenkar
    @RonShenkar 7 років тому +10

    I've yet to see/hear a better, more concise explanation of Graham's Law. Thank you so much, man.

  • @-RajgeetTalukdar
    @-RajgeetTalukdar 3 роки тому +1

    The point at which my google search results for doubts end...is where khan academy videos start.

  • @shravanidharanm.2456
    @shravanidharanm.2456 11 років тому +3

    your example was awesome!thank you for this good explanation.

  • @bonenettle
    @bonenettle 11 років тому +3

    LOVE this explanation. Thank you.

  • @incrivel1216
    @incrivel1216 8 років тому +1

    thank you so much now I understand the concept of graham's law.

  • @muhammadsaeedmemon6428
    @muhammadsaeedmemon6428 8 років тому +2

    Absolutely gr8!

  • @123Blessings
    @123Blessings 7 років тому +7

    Thank you!
    You've got yourself a new subscriber

    • @devadharsan7721
      @devadharsan7721 3 роки тому

      Do you know who the new subscriber ks

    • @superxiphias
      @superxiphias 2 роки тому +1

      @@devadharsan7721 That's either a joke or ur stupid lmao

  • @adnin8968
    @adnin8968 3 роки тому +2

    God bless your soul,Sir.

  • @Azproductions2747
    @Azproductions2747 2 роки тому

    thanks man best use of 8.57 minutes of my life

  • @yvrakasavyou
    @yvrakasavyou 9 років тому +1

    Explains 100% better than my chem honors teacher

  • @2494victor
    @2494victor 9 років тому

    It's good so many sciences use this law.

  • @arushi2936
    @arushi2936 3 роки тому

    Your teaching is very interesting. Practically explanation is very nice.

  • @idektega4271
    @idektega4271 3 роки тому

    You just saved a life 🥺 thank you🤲🏾

  • @rebellionpower
    @rebellionpower 11 років тому

    i wish if you can make renal system videos soon ..my final exam in 2 month time ...THANX A LOT! I HAVE GREAT RESPECT FOR YOU ..SAY SALAM TO SALMAN FOR ME IF YOU MEET HIM

  • @devadharsan7721
    @devadharsan7721 3 роки тому +3

    This alien friend is from 2020 earth.

  • @SarveshKumar-ml5jd
    @SarveshKumar-ml5jd 7 років тому

    thanks u gave me a new formulaae

  • @elizabethelson1124
    @elizabethelson1124 2 роки тому

    Nice explanation 👌👍👍😄

  • @tiredcat6653
    @tiredcat6653 6 років тому

    thank you so much, I love you for this

  • @karthikreddy4534
    @karthikreddy4534 5 років тому

    Thanks

  • @agastyachordia1779
    @agastyachordia1779 4 роки тому

    It’s great

  • @ramarao8182
    @ramarao8182 16 днів тому

    Ok 👌👌👌good

  • @myannasdfghjkl
    @myannasdfghjkl 8 років тому +21

    how can the alien tell you which one he smells first if he never smelled any of the gases before

    • @niranjan10
      @niranjan10 8 років тому +4

      Lol ...he has a special nose and can detect the gas... As said in the video

    • @JohnPatrickFilm
      @JohnPatrickFilm 6 років тому

      how can you dectect something if you dont know what it is? you couldnt tell me the difference between a house and a church if you had never seen either

    • @_N_E_E_R_A_J_
      @_N_E_E_R_A_J_ 6 років тому

      Respawn Master u r right same question emerged in me also!!😂😂

  • @saumilidutta9505
    @saumilidutta9505 5 років тому

    Good video

  • @abhinandanbhardwaj1
    @abhinandanbhardwaj1 4 роки тому

    does it depend on the number of moles of gas?

  • @mmahjoori
    @mmahjoori 9 років тому +1

    I guess something is wrong in this explanation.
    If the nummber of the molecules in the pot are the same (moles of O2=moles of CO2), then you can put directly the MW in order to compare them. But consider for example you have one molecule CO2 and 1000 molecules O2. In this case whether you have to consider the relative pressure or the mol numbers to have a correct equation.
    For example: n1.MW1.V1 ^2=n2.MW2.V2^2
    It is not like this?

  • @r.y.sgaming5349
    @r.y.sgaming5349 8 років тому +1

    what is kinetic energy? please explain.

  • @AmithKuddus
    @AmithKuddus 9 років тому

    idea is nice to explain Gharam's law

  • @VerglasOfficial
    @VerglasOfficial 9 років тому +1

    For Hydrogen would I use 1 or 2 for its molar mass? I don't know what to use because my chemistry teacher said hydrogen was a diatomic element but I don't know if it's applicable to this situation.

    • @spaight711
      @spaight711 7 років тому +1

      Hydrogen exists as H2, so it would be 2g/mol. It's the mass of the gas, not the element[s] the gas is named after; you have to reference the chemical formula of the gas.

  • @caseygallagher1753
    @caseygallagher1753 6 років тому

    A cumbersome metaphor, but I grasp the concept and the goofy video will help me remember it.

  • @StickWithPlan
    @StickWithPlan 5 років тому +1

    So basically after he writes RateO = √44/32 he simply gets the square root of both then what he does ? How he gets the answer simply of 1.17 how? And he multiples with rateC but for now we know we don't have rateC yet
    Confusing someone help.

    • @devadharsan7721
      @devadharsan7721 3 роки тому

      Yo rate c indiacates the rate of diffuson of carbon atoms. And he got the answer simply with the calcultor , I hope your doubt got solved after a couple of years

  • @uewtv3888
    @uewtv3888 4 роки тому

    Guys any help?
    The density of a gas of relative molecular mass 28 at a certain temperature is 0.90 kgm-3. The root mean square speed of the gas molecules at that temperature is 602 ms-1. Assuming that the rate of diffusion of a gas is inversely proportional to the square root of its density, calculate the density of the gas standard temperature and pressure if its root mean square speed at is 490 ms-1.

  • @diannosaur16
    @diannosaur16 5 років тому

    Can anyone tell me why he did the rate of oxygen and not carbon dioxide first?

  • @Akshay-ib2bv
    @Akshay-ib2bv 7 років тому

    5:23

  • @sandeepkumar-br4sy
    @sandeepkumar-br4sy 7 років тому

    Explain defusion too

  • @kalpanaarul3101
    @kalpanaarul3101 2 місяці тому

    in tamil graham means plane

  • @mhmmdhaggag
    @mhmmdhaggag 9 років тому

    hiiii
    can you tell me please what ddi you use to make this video what is that tool you use to appear on screen like a black board???

    • @devadharsan7721
      @devadharsan7721 3 роки тому

      He used carbon atoms as they have more diffuson rates and black colour.

  • @CandyWandable
    @CandyWandable 9 років тому +1

    i like looking at his handwriting lmao

  • @yeahitotallyagree.2062
    @yeahitotallyagree.2062 8 років тому

    Why does carbon dioxide goes on top and not bottom ?

    • @thanhhoang1983
      @thanhhoang1983 8 років тому

      +Andrew Lam Because of providing energy to molecules, so they are moving arbitrarily. Sometime carbon dioxide molecules can be on top and vice versa.

  • @yeahitotallyagree.2062
    @yeahitotallyagree.2062 8 років тому +1

    How do I know which gas is rate 1 and which gas is rate 2 ? Or does it even matter ?

    • @thanhhoang1983
      @thanhhoang1983 8 років тому

      +Andrew Lam He said rate 1 for oxi and rate 2 for carbon.

    • @krisssssssu
      @krisssssssu 2 роки тому +2

      it doesn’t matter so long as you are consistent

  • @StigggyWigggy
    @StigggyWigggy 10 років тому

    He wouldn't have any problem cooking your pot haha

  • @AceGamingProductions
    @AceGamingProductions 6 років тому

    This is so confusing and convoluted.

  • @natalianegrete7160
    @natalianegrete7160 4 роки тому

    ITS NOT 1.17 it’s 1.2 :))

  • @rebellionpower
    @rebellionpower 11 років тому +1

    He talks english?

  • @Jack7967
    @Jack7967 11 років тому

    Telepathy.

  • @JHANSI_REDDY
    @JHANSI_REDDY 3 роки тому

    Do you know what the alien 👽 would say?
    Well I know 😏
    It would say, Mmmm! what a mouth watering smell 😋! We never cooked this kind of delicious gases in our planet. I want more.
    What else would you expect from him to say?
    LET ME KNOW.

  • @grandpadale4026
    @grandpadale4026 3 роки тому

    This is untrue in the human body. Co2 is faster.

  • @drujjawalrathore
    @drujjawalrathore 6 років тому

    18 blue aliens disliked it 👽

  • @viyank6644
    @viyank6644 6 років тому

    Awful example

  • @incrivel1216
    @incrivel1216 8 років тому +1

    thank you so much now I understand the concept of graham's law.