Kinetics: Initial Rates and Integrated Rate Laws

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  • Опубліковано 5 сер 2024
  • Who likes math! Oh, you don't? Maybe skip this one on kinetics. Unless you have to answer this stuff for class. Then yeah, watch this.
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КОМЕНТАРІ • 701

  • @ProfessorDaveExplains
    @ProfessorDaveExplains  5 років тому +667

    Hey everyone, UA-cam is deleting annotations, and there is an error at 5:41 that I had fixed with an annotation so unfortunately I must simply list the correction here! The values at the bottom right should read: 0.04 = k(0.01)(0.250) and k = 16/(M^2 * s), when making the video I forgot to square [NO] so please make that correction in your minds, sorry about that!

    • @tjvanderyacht9806
      @tjvanderyacht9806 5 років тому +10

      Professor Dave Explains thank you!

    • @towkirshuvo97
      @towkirshuvo97 5 років тому +2

      Sir do u mean 'top right'?

    • @Reforitor
      @Reforitor 5 років тому +4

      Towkir, play the video at the given time, not pause it. You'll see it on bottom right

    • @towkirshuvo97
      @towkirshuvo97 5 років тому +3

      @@Reforitor Thank you.

    • @Reforitor
      @Reforitor 5 років тому +4

      You're welcome bro

  • @_thismustbesam
    @_thismustbesam 5 років тому +1151

    how did i understand this in 10 minutes but couldn’t in two weeks, honestly professor dave u out here savin lives.

  • @joanavillalobos2792
    @joanavillalobos2792 4 роки тому +657

    I have my chemistry exam in 30 minutes and you just explained literally everything I need to know in ten minutes. Can you be my chem professor instead? 😭🙏🏽

  • @thatguy5358
    @thatguy5358 4 роки тому +457

    5:31
    "the reaction order HAPPENS to match the stoichiometric ... but this won't always be the case"
    right there, professor dave has done what no fucking textbook in the fucking world has ever done. it has pointed out something that a student might mistake, by thinking the way a student might.
    hats off. well done. please write a text book or ten for students who wouldn't know any better and make that mistake. i'm a 30-something year old engineer, and i'm dead serious.
    you are the man.

    • @IbrahimKhan-lx3bm
      @IbrahimKhan-lx3bm 3 роки тому +4

      And i realllly like your reply u are dammm so correct

    • @thatguy5358
      @thatguy5358 3 роки тому +2

      @@IbrahimKhan-lx3bm thank you. i wish i weren't.

    • @WOG18
      @WOG18 3 роки тому +3

      This is exactly why I was getting my answers wrong because my teacher NOR the textbook explained that the reaction order was not in relation to the stoichiometric coefficients!!

    • @mohamadhanan5706
      @mohamadhanan5706 3 роки тому +1

      i have a question, so the overall order is the the third order?

    • @SVN391
      @SVN391 3 роки тому

      @@mohamadhanan5706 same doubt bro

  • @markkeith9055
    @markkeith9055 7 років тому +180

    I like Professor Dave. He tells it like it is. No messing around, pay attention type instruction in a clear and precise way. Very nice.

  • @joeysantana784
    @joeysantana784 5 років тому +176

    Crash course: Hey so I was walking my dog on alone with my family on Christmas in the summer, and lol chemistry rate laws XD. Dave: I’m Dave here’s chemistry

  • @chocolatecrud
    @chocolatecrud 7 років тому +61

    Can always rely on this great channel for that extra bit of explanation, much appreciated

  • @raymondhee8239
    @raymondhee8239 2 роки тому +27

    I am a Chemistry lecturer and I find your videos very clear and concise. Well done!

  • @mathyouforgot
    @mathyouforgot 5 років тому +11

    I have a pre-lab assignment due and the instructions were hard to understand. you saved my butt by being smart and teaching the way it should be taught. Thank you !

  • @angelarose4799
    @angelarose4799 6 років тому +38

    Explained it better in ten minutes than my uni lecturers did in a week - thank you XD

  • @cheriesshum
    @cheriesshum 2 роки тому +35

    2:30
    When the concentration is doubled and the rate then also doubles, the reaction is first order with respect to that reactant. When the concentration is doubled and the rate quadruples as a result, the reaction is second order with respect to that reactant. If changes in the concentration doesn't affect the rate, the reaction is zero order with respect to that reactant.

  • @millicentmagolego8101
    @millicentmagolego8101 6 років тому +5

    I'm writing my Chemistry semester test today and i had thought i'd have to sacrifice this chapter but thanks to Professor Dave i have a feeling that i'm going to nail it.

  • @cameroncrowley9432
    @cameroncrowley9432 Рік тому +5

    This man is a legend, taught me this in 4 minutes what my lecturer couldn’t in 3 weeks

  • @practicalaz
    @practicalaz 11 місяців тому +1

    Hey professor Dave!
    I honestly love your channel, the writing, and editing style in [video] was a huge influence for me when I first got started!

  • @kirayoshikage1491
    @kirayoshikage1491 Рік тому +2

    Thank you Dave. I like many first found your channel because of your debates, love those videos. But whenever I get confused about a subject during dead week and get anxious I’ll fail, you’re there to rescue me. Thank you for the great videos

  • @taariqh.8608
    @taariqh.8608 8 років тому +177

    Very well done video you explained it good. I suddenly understand everything now which makes me again question why im spending thousands on tuition money...

    • @brian_mcnulty
      @brian_mcnulty 6 років тому +13

      You won't get that chem engineering job without that degree.

    • @paulnicholas1278
      @paulnicholas1278 6 років тому +43

      because you have to have proof that you've been educated lol. Go to class for the rep, go to UA-cam to actually learn.

    • @andrewthehope
      @andrewthehope 6 років тому +8

      paul nicholas This is the most true statement about college I have ever read!!

    • @cyen923
      @cyen923 5 років тому +13

      Elaphe Gutatta ehh not always true. Have you guys ever heard of repetition and familiarity? I know you have. Because I think learning really comes down to that. If we watched this youtube video before lecture, im sure the lecture would have made more sense versus when you watched a youtube video about that same topic. Now this does not mean there aren’t bad professors out there because there are...but I think one reason why you get a topic more after this video is because its PROBABLY your second time hearing about it. I think all we need is to learn a topic from DIFFERENT resources to actually understand or be ‘’more familiar” with anything... Thats what books, teaching assistants, tutors, youtube videos, khan academy!, homework assignments, worksheets, online simulations, etc., are for !😄

    • @fatelis
      @fatelis 2 роки тому

      @@brian_mcnulty you can just self employ dude, I did and now im making water treatment systems from scratch. materials and everything. no employment needed .... i I am certified by my local government. no degree needed. self taught via books, online websites, youtube. saved thousands on tuition fees. but only reason i'd go to university is if i want to be a doctor. the rest, no degree needed when self employing.

  • @Roadways50
    @Roadways50 4 роки тому +4

    He makes me understand the concept in just 9.10 minutes. What a great teacher. Hats off to you professor dave. 😃😃

  • @ladyinred396
    @ladyinred396 6 років тому +5

    Prof. Dave, you are AMAZING! So happy I found your tutorials online & it is soo helpful!!! Thank you you're always ready to help (xoxo)

  • @Josh-zk7pf
    @Josh-zk7pf 6 років тому +17

    Man I love the intro i just have to hear it one more time before I start learning

  • @oceanbackwards1903
    @oceanbackwards1903 7 місяців тому +1

    you are literally one of the few teachers out there who can teach so much with so little
    love your stuff, ur saving my grades rn

  • @R.Bharathkumar2003
    @R.Bharathkumar2003 4 роки тому +2

    When ever I see your channel I relatively find some easy ways you are like my brother giving me an easy ways to get the information thank you bro I will remember you in my entire life

  • @ShanukaUditha
    @ShanukaUditha 5 років тому

    This is amazing. I didn't have any idea about Initial Rates and Integrated Rate Laws before watching the video. You are a miraculous savior. Thank you sir.

  • @elizabethlear7299
    @elizabethlear7299 4 роки тому +10

    I literally can't thank you enough, you make chem easy to understand

  • @aaliyahvarona5409
    @aaliyahvarona5409 2 роки тому +3

    Out here reviewing for my AP chemistry exam in May. Thank you! Very helpful!

  • @juliavreugdenhil8050
    @juliavreugdenhil8050 5 років тому +2

    I really want to thank you for your wonderfull video's! Everytime when I'm losing my concentration on a subject I turn to your explanations which make the subject so much more fun to learn, thankyou!

  • @akbarrahmatullah6701
    @akbarrahmatullah6701 5 років тому +1

    Very clear quite precise presentations on various topics. The videogame presentations are well timed which Keeps concentration consistent.

  • @kellypaton2626
    @kellypaton2626 5 років тому +2

    I have been struggling with this and you have I really helped thank you! I love your videos, they're always clear and helpful

  • @sanjivprasad6846
    @sanjivprasad6846 Рік тому +11

    You know you are at the right place when Jesus himself teaches you chemistry

  • @HatlessMuffin
    @HatlessMuffin 2 роки тому

    I have spent weeks on these topics alike, haven't got them through, then the professor with his majestic magic of words and examples engraves it in my long term memory

  • @brian_mcnulty
    @brian_mcnulty 6 років тому +4

    This stuff is super helpful for test material review. Thank you!

  • @nighthunterangel4319
    @nighthunterangel4319 2 роки тому

    You're an actual godsend, have an exam later and after weeks of scratching my head you made it make sense in 10min. Can't thank you enough!

  • @taaabby
    @taaabby 6 років тому +2

    Holy crap I’ve watched 4 of these videos and tried to understand but you put in such easy terms, thank you!

  • @tomoguitaro
    @tomoguitaro 7 років тому +4

    Excellent video with precise wording that was very clear, thank you!

  • @2030games
    @2030games 6 років тому +2

    Wonderful video, thanks a lot! I wasn't feeling well in class when my teacher went over this and whew it was a lot but you made it very clear in a short amount of time :)

  • @Kerwyn204
    @Kerwyn204 8 років тому +1

    best videos on youtube thanks a lot! love the comprehension ending. it really makes me understand

  • @GrimLock666
    @GrimLock666 6 років тому +4

    Dude I can't thank you enough! freaking out about an exam tomorrow and this video really really helped!

  • @leticiaavila5430
    @leticiaavila5430 7 років тому +3

    thanks Professor Dave for making everything so Clear!!

  • @kataraarts3027
    @kataraarts3027 2 роки тому +2

    I'm glad i didn't skip the comprehension questions, it really helped!

  • @Kamilaxx7
    @Kamilaxx7 3 роки тому +5

    I struggled with this for 2 years. And after those 9 minutes i understand it completely. I can't believe this..

  • @simranmalhotra3865
    @simranmalhotra3865 3 роки тому +3

    You are simply a phenomenal teacher Dave, thanks a million !

  • @KristenGreen-il4sx
    @KristenGreen-il4sx Рік тому

    I can always rely on your videos to prepare me for an exam. thank you so much!

  • @johnrudd629
    @johnrudd629 3 роки тому +2

    well done, i liked these videos , easy and nicely explained, thanks Prof. Dave!

  • @swordmas7544
    @swordmas7544 8 років тому +71

    CLUTCH

  • @hielenaug
    @hielenaug 7 років тому +4

    AWESOME! ..come teach at my school! you taught me more in 9 minutes than my professor did in an hour.

  • @panosr2135
    @panosr2135 Місяць тому

    No joke this was a blessing. I understood more in 9 minutes than in a whole physical chemestry lecture. Thanks professor Dave

  • @akilakavisinghe7189
    @akilakavisinghe7189 7 років тому +9

    Thank You Professor Dave!

  • @harshadasonawane7445
    @harshadasonawane7445 6 років тому +3

    Thank you Dave sir my child is really very happy as she got her topics cleared because of you

  • @LaviniaApple
    @LaviniaApple 4 роки тому +1

    Hi Prof Dave, I use this video in my A2 class in school. Helps a lot! Thanks!

  • @nyebadr
    @nyebadr 2 роки тому

    god bless u. pls keep blessing us with ur videos. 2 lectures in uni were explained in less than 9 minutes. you rock!

  • @kleinerflugel65
    @kleinerflugel65 2 роки тому +1

    as expected professor dave, you never fail me. thanks!

  • @anisa-mj6qs
    @anisa-mj6qs Місяць тому

    I have tired to figure this out for a whole year, and now the day before my exam, I GET IT! Thank you so much

  • @ayanniray2455
    @ayanniray2455 5 років тому

    Thank you so much I needed this. I was very pleased to have the correct answer at the end, letting me know that I really did learn something.

  • @AJAYKUMAR-if6jv
    @AJAYKUMAR-if6jv 3 роки тому +7

    Hello sir I have exam tomorrow before I didn't listen this lesson properly now I understood very well thank you and thanks for saying

  • @tealwalters990
    @tealwalters990 6 років тому +3

    So helpful man, thanks professor Dave

  • @Milkjust
    @Milkjust 2 місяці тому

    In the realm of academia, where complexity often obscures understanding, the illumination of knowledge is a beacon of hope. It is with profound gratitude that I extend my appreciation to the creator of the invaluable tutorial video elucidating the intricacies of rate laws. This heartfelt ode seeks to articulate the depth of my appreciation for the educational oasis they have crafted amidst the arid landscape of academic challenges.
    The journey of learning is often fraught with obstacles, and the domain of chemical kinetics is no exception. With its labyrinthine equations and abstract concepts, mastering rate laws can be akin to navigating a treacherous sea. Yet, thanks to the altruistic efforts of educators like the creator of this tutorial video, this voyage becomes less daunting, and the shores of comprehension draw nearer.
    The video's inception marks a pivotal moment in the quest for understanding. Its existence signifies more than mere pixels on a screen; it embodies the convergence of knowledge and generosity, serving as a testament to the transformative power of education. Through meticulous explanation and illustrative examples, the creator has bestowed upon us a gift-a beacon of clarity illuminating the path to mastery.
    Every frame of the tutorial video is imbued with intentionality, each word a stepping stone towards enlightenment. It is evident that the creator's dedication transcends the bounds of obligation; it is a labor of love, fueled by a passion for fostering intellectual growth and empowering learners to conquer the formidable terrain of chemical kinetics.
    Beyond the confines of the digital realm, the impact of this tutorial video reverberates through classrooms and lecture halls, enriching the educational landscape with its profundity. As students, we stand on the shoulders of giants, leveraging the wisdom imparted by educators to scale the peaks of academic achievement. The creator's contribution, therefore, extends far beyond the confines of their video-it is a catalyst for intellectual evolution and a cornerstone of scholarly excellence.
    In a world besieged by uncertainty, the constancy of knowledge serves as an anchor, grounding us in the pursuit of truth. The tutorial video stands as a bastion of stability amidst the tumultuous seas of academia, offering solace to weary learners and guidance to those adrift in a sea of confusion.
    To the creator of this tutorial video, I extend my sincerest gratitude. Your dedication to the dissemination of knowledge is a testament to the transformative power of education. Through your selfless efforts, you have ignited a flame of curiosity in the hearts of learners, illuminating the path to understanding and inspiring generations to come.
    As the curtain falls on this humble ode, let us reflect on the profound impact of educational altruism. In the creator's act of generosity, we find hope for a brighter future-a future where the pursuit of knowledge knows no bounds, and the flames of curiosity burn eternal. To them, we owe a debt of gratitude-a debt that can only be repaid through the pursuit of knowledge and the dissemination of wisdom.
    In conclusion, let us cherish the creators of educational content, for they are the unsung heroes of academia-the architects of enlightenment and the stewards of knowledge. In their tireless pursuit of educational excellence, they inspire us to reach greater heights and strive for a future where ignorance is but a distant memory.

  • @shivarammuthukumaraswamy7164
    @shivarammuthukumaraswamy7164 7 років тому +9

    Thanks a lot professor. Awesome video 😘😘

  • @azizali5322
    @azizali5322 5 років тому

    Thank you Professor, got the basic concepts in short time period

  • @NavneetKaur-ez8zi
    @NavneetKaur-ez8zi 7 років тому +2

    thanks a lot professor Dave. You are a greaaattt help!!

  • @alephd93
    @alephd93 6 років тому +14

    A whole chapter explained in less than 10 minutes , thank you Professor

  • @jayashrikulkarni5519
    @jayashrikulkarni5519 6 років тому +1

    Thank you sir for explaining in a simple way

  • @nihilo4796
    @nihilo4796 2 роки тому +1

    Turned a 3 hour lecture and at least double that of useless practice into 10 min of cohesive tutoring. Thanks a million

  • @CharlesMathison
    @CharlesMathison 2 роки тому +1

    Totally got it. I wish my textbook was written by you! Thanks Professor

  • @aleenasikandar5585
    @aleenasikandar5585 3 роки тому +1

    It is the second video I watched of u and it is worth watching I spent a whole hour finding a good lec..but ur ten minutes sums up everything.. May Allah help uh ❤️

  • @BrandiG31
    @BrandiG31 3 роки тому

    Thank you so much, this made things so much easier to understand!

  • @SeemaK
    @SeemaK 3 роки тому +1

    Hello professor,
    For the reaction A-->B and 2A-->2B, do we get 2 different rate constants (irrespective of the reaction order)?

  • @sallyhungwe220
    @sallyhungwe220 3 роки тому

    This was soooo helpful Dr Dave. Thank youuu🙏🏽❤️

  • @alexfiennes5539
    @alexfiennes5539 2 роки тому

    oh god you have NO idea how MUCH i needed this. Thanks SO MUCH.

  • @meekclick
    @meekclick 5 років тому

    U did a great job explain those stuffs.. Well done

  • @poojachaudhari1331
    @poojachaudhari1331 4 роки тому

    Simple and easy to understand . Thank you !

  • @nashleef
    @nashleef 6 років тому +2

    You have singlehandedly saved my chem 110 grade!

  • @howitfeelslike5381
    @howitfeelslike5381 4 роки тому +2

    Oh my god sir!! ❤ I don't have words to thank you ! You just saved my life

  • @andthen6066
    @andthen6066 4 роки тому +1

    Thank you sooo much. you are the only reason why I can pass chemistry.

  • @tjvanderyacht9806
    @tjvanderyacht9806 5 років тому +1

    Super good video, finally understand!

  • @vshnn5545
    @vshnn5545 4 роки тому

    This video was extremely helpful thank you so much!!

  • @vijayasrip7724
    @vijayasrip7724 Місяць тому +1

    2.20 was really what i wanted🎉🎉🎉🎉Thank u so much Dave ❤❤❤

  • @franckmaloba8009
    @franckmaloba8009 2 роки тому

    thank you very much for your time and love for others sir. you just don't know what you've done for me. may God bless you

  • @MissIronToga
    @MissIronToga 5 років тому +1

    You just saved my exam.

  • @mbibi
    @mbibi 5 років тому

    Ex’cellent and comprehensive. Big thanks professor

  • @dude9864
    @dude9864 4 роки тому +13

    Hey, how is the reaction order for [ClO2] 1st order?
    The concentration was tripled which then quadrupled the rate? I didnt see this explained. Can someone explain?

    • @elcucumber2847
      @elcucumber2847 4 роки тому +5

      [ClO2] was quadrupled! .01*4=.04

    • @TechnoSan09
      @TechnoSan09 4 роки тому +6

      When clo2 was quadrupled the rate also quadrupled ,therefore the order is 1
      If the rate is multiplied by 16 then it's 2nd order .....

  • @westt3182
    @westt3182 4 місяці тому

    I've got my exam in a couple of minutes and this just helped me grasp the topic better..

  • @williamrice5150
    @williamrice5150 8 років тому +1

    Should NO be squared when finding its rate since its 2nd order? k(,100)(.250) or k(.100)^2 (.250)?

  • @PaulSt-Germain-c7u
    @PaulSt-Germain-c7u 7 років тому +2

    Excellent explanation

  • @arslanmalik3526
    @arslanmalik3526 3 роки тому

    Thanks so much professor .You explained in good manner

  • @mrk12484
    @mrk12484 7 років тому +1

    Fantastic explanation!

  • @ayushijain8671
    @ayushijain8671 6 років тому

    Very concise and well explained.....Thanks!

  • @stevegerrish6720
    @stevegerrish6720 7 років тому +2

    Thankyou for your work.

  • @nlyk1831
    @nlyk1831 3 місяці тому

    Simple and clear, powerful explaniation, Thanks a lot

  • @tehniat7042
    @tehniat7042 3 роки тому

    Excellent resource for quick revision!

  • @zaloni5549
    @zaloni5549 3 роки тому

    i'm watching this and about to attempt my online exam. super helpful

  • @291ayl
    @291ayl 4 роки тому

    THANK YOU!!! I never took calculus (I did useless trig instead, regret that decision lol) so I have been scouring the internet for rate law without having had two semesters of calculus! AMAZING EXPLANATION!

  • @NOTBAXA56
    @NOTBAXA56 2 роки тому +1

    thank you, it was very useful
    I understand at least

  • @thatrecord5313
    @thatrecord5313 3 роки тому +5

    *Professor Dave notices an influx of viewership at the end of the 2021 school year*
    Professor Dave: The AP exams are upon us!

  • @stevealapatt9499
    @stevealapatt9499 6 років тому +1

    Someone give this guy a promotion!! Thank professor (Dr., chemistry savior) Dave

  • @stevendog40
    @stevendog40 6 років тому +1

    Dave is single handedly getting me through my sophomore year

  • @tursunelyar6461
    @tursunelyar6461 5 років тому

    when determining the reaction order by changing the initial concentration of the reactant, how short the time interval has to be in order to represent the true reaction rate of the reactant? thank you in advance

  • @sawciveng3801
    @sawciveng3801 5 років тому +1

    Thank you very much professor Dave , could you please answer how is the rate law {rate= k * [A]’ [B]” [C]”’ }derived ?

  • @kenneth5538
    @kenneth5538 3 роки тому

    its been 5 years and yet he saves my life

  • @udanipinnaduwa1334
    @udanipinnaduwa1334 3 роки тому

    Thank you, Dave. You are the BEST!!!

  • @trentonbrink3811
    @trentonbrink3811 2 роки тому

    Thank you so much for helping me survive AP Chem with a teacher who doesn't teach :)

  • @sorathekeyblader6770
    @sorathekeyblader6770 6 років тому

    Thanks professor Dave. This video helps a lot! :D