The Arrhenius equation | Kinetics | AP Chemistry | Khan Academy

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  • เผยแพร่เมื่อ 25 ธ.ค. 2024

ความคิดเห็น • 23

  • @daniellockhart6863
    @daniellockhart6863 ปีที่แล้ว +1

    Is there a video where you go into a decent level of detail. I think most of us came here in the hopes you could solve for A and k in this equation. Maybe given a third parameter like the diameter of molecules involved and maybe also talk about the steric factor?

  • @Trifocal7777
    @Trifocal7777 7 ปีที่แล้ว +8

    what is the value of A

    • @chopotronichappiness8917
      @chopotronichappiness8917 6 ปีที่แล้ว +6

      A refers to Arrhenius Frequency Factor. It is the product of steric factor (p) and collision rate (Z).

  • @EagleLogic
    @EagleLogic 8 ปีที่แล้ว +10

    I don't understand where the equation came from when you solved for f? And what is f anyway? That is not the equation from the beginning. A little confused

    • @boredz23
      @boredz23 8 ปีที่แล้ว

      I believe f would just be a random variable assigned for the function of the exponential part of the equation that depends on activation energy/(constant)xTemp. I would say its simply a way to separate the data like, x=a+b

    • @rafeataji6415
      @rafeataji6415 8 ปีที่แล้ว

      f is fraction of effective colision

    • @dq9021
      @dq9021 7 ปีที่แล้ว +1

      In chemistry 2, I only know how to put numbers into the formulas. If we want to know more, I think we should take other courses.

    • @jadbashar8815
      @jadbashar8815 3 ปีที่แล้ว

      did you graduate ??

  • @dvc2516
    @dvc2516 4 ปีที่แล้ว

    Thanks a bunch!

  • @ShekharSharmaDr
    @ShekharSharmaDr 4 ปีที่แล้ว

    Thank you!

  • @alexcoughlan9144
    @alexcoughlan9144 5 ปีที่แล้ว +5

    where does f come from?

    • @El_Bicho_Feo
      @El_Bicho_Feo 3 ปีที่แล้ว

      f is the fraction of collisions having enough energy for a reaction to occur (1:05 - 1:15)

  • @Cheiriko
    @Cheiriko ปีที่แล้ว

    What is the relation of f to k?

  • @hey__you
    @hey__you 3 ปีที่แล้ว +3

    This kills me

  • @musataz
    @musataz 7 ปีที่แล้ว +4

    so where does it come from?They just make us solve the problems in school......never tell us about the ground.......:(

  • @angelsure6332
    @angelsure6332 7 ปีที่แล้ว

    i don't understand where you got the unit conversion for 40KJ to -40,000?

    • @Rykbui
      @Rykbui 7 ปีที่แล้ว +10

      40KJ (40 Kilo Joules) is 40,000 Joules which is the units you're supposed to use for the equation. it's negative because the arrhenius equation makes it negative.

  • @BenjaminKuruga
    @BenjaminKuruga 8 ปีที่แล้ว

    Great explanation. Thank you.

  • @chahrazedguezguez2879
    @chahrazedguezguez2879 9 ปีที่แล้ว

    Why do you divid it with 1000000?

    • @vikasjishtu4699
      @vikasjishtu4699 9 ปีที่แล้ว

      1000000 is just a no. used u could use any other number
      but using a bigger no is easier to understand as there actually are innumerable reacting specie

    • @JoblessNunnu
      @JoblessNunnu 8 ปีที่แล้ว +1

      bcoz its an unit.......parts per million...ppm....might heard in schooling..........

    • @b_08_amitkumarsahu90
      @b_08_amitkumarsahu90 7 ปีที่แล้ว

      Chahrazed Guez Guez what is f there