Hess's Law and Cycles

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  • Опубліковано 17 січ 2025

КОМЕНТАРІ • 360

  • @chroniclesofaishaxo7008
    @chroniclesofaishaxo7008 7 років тому +203

    Absolute legend, I don't know why I still go to school.. migh aswell complete my studies with the help of UA-cam and from talented people like you sir.

    • @AlleryChemistry
      @AlleryChemistry  7 років тому +45

      Ah. No substitute for school though. Hope your revision is going well.

  • @sabirl9232
    @sabirl9232 2 роки тому +74

    I’ve been struggling at this particular chapter for ages AND YOU FIXED IT ALL WITHIN JUST 20 MINUTES OF PURE MASTERCLASS. may god bless you, thanks for being such a blessing. Means a lot istg

    • @AlleryChemistry
      @AlleryChemistry  2 роки тому +6

      You're welcome!

    • @Imsolahh
      @Imsolahh 5 місяців тому

      yaaa thts really trueeee🎉🎉🎉🎉🎉 thanku

  • @goharkhan2627
    @goharkhan2627 8 років тому +489

    watch these videos carefully kids.. I got an A grade in chem following this channel ;)

    • @AlleryChemistry
      @AlleryChemistry  8 років тому +151

      Grade A comment too! Thanks for that!

    • @haroon4330
      @haroon4330 6 років тому +16

      kids? u fucking muppet u probably got a U grade

    • @saadpatel2734
      @saadpatel2734 6 років тому +1

      same here

    • @carefull8365
      @carefull8365 5 років тому

      Will do

    • @igcse-bz4qo
      @igcse-bz4qo 5 років тому +2

      Can I use these videos for Cambridge syllabus too ?

  • @sarahkhan5317
    @sarahkhan5317 7 років тому +189

    you are an amazing person!
    never understood this concept so well until now...THANKS A TON 👍👍👍

  • @senalperera3728
    @senalperera3728 4 роки тому +35

    Sir, I am a Sri Lankan doing cambridge A levels. For like 1 and a half year I had no clue of what the hess's law is, i asked many teachers but i didnt still get it, just watched this video now and now hess's law is the most easiest lesson for me !! THANK YOU SOO MUCHH SIR !!! I REALLY WISH IF I COULD MEET YOU !! YOU ARE AMAZIMG !! KEEP DOING SUCH VIDEOS SIR !!

  • @rictiovaros3768
    @rictiovaros3768 7 років тому +37

    This is honestly the most well-done explanation for Hess's Cycles I could find, absolutely outstanding! Wish I had discovered your channel sooner, love the content! Keep up the great work mate!

  • @GreenDayLfcRule
    @GreenDayLfcRule 7 років тому +21

    This has been stumping me for the past 2 years, thank you so much. It is a lot clearer now!

    • @AlleryChemistry
      @AlleryChemistry  7 років тому +8

      Yes Hess's law is the thorn in the side for A level chemists up an down the country! Pleased you now understand it. An exam favourite!

  • @vishnukrishna8632
    @vishnukrishna8632 7 років тому +43

    I legit wish u were my Chemistry Teacher! Amazing video!.

  • @bensonthomas197
    @bensonthomas197 7 років тому +39

    You are a genius! I've spent the whole day watching your videos in preparation for my AS exam tomorrow! These have really helped me to understand key topics that I didn't get before! If I do well in chem for my predicted grades, I'll thank you!!

    • @AlleryChemistry
      @AlleryChemistry  7 років тому +12

      Hope your exam went well! Please the vids have helped you too, makes it all worth while!

  • @isaacpatch7725
    @isaacpatch7725 3 роки тому +3

    This is really the best tutorial I have found for Hess's Law THANKS

  • @upraz1930
    @upraz1930 7 років тому +24

    I hadn't understood this for a while but after watching this video, everything has been cleared up! Thank you so much!!

  • @ndilimevavanamoloh1554
    @ndilimevavanamoloh1554 2 роки тому +5

    Thank you sir.😊
    I've been struggling with this for 7 months and you made me understand in 20 minutes!👏👍

  • @hlovestxt8726
    @hlovestxt8726 2 роки тому +3

    thank you so so much! you are saving my chemistry as grade. i almost cried in lesson because i was so confused and you explained in 20 mins what my teacher couldn't explain in 2 hours

  • @sjdecosta8186
    @sjdecosta8186 4 роки тому +1

    It has taken me forever and a half to understand the cycle calculations! Made it make sense - THANKYOU

  • @azulafire4544
    @azulafire4544 3 місяці тому

    probably the only person that made this topic actually understandable, thank you!

  • @fahmidababul9747
    @fahmidababul9747 7 років тому +63

    great video-best explanation on UA-cam :D

  • @higuys6881
    @higuys6881 5 років тому +1

    Was so confused until watching the first 5 minutes of your video. Thank you !!!

  • @TheZmoliver
    @TheZmoliver 4 місяці тому

    To anyone who reads comments before deciding to watch a video... This doesn't have the nice computer animation and the dry erase marker is kind of hard to see and read but this is by far the best and easiest explanation I've found on how to solve these problems. And I have been doing some serious searching! Thanks for this, man!

  • @SistemaSolar781
    @SistemaSolar781 15 днів тому

    Idk how much i can thank you, this video finally made me understand how to solve these type of questions keep it up!!

  • @katierosexx4764
    @katierosexx4764 3 роки тому +4

    the best video out there for understanding Hess Cycles. I struggled so much trying to learn these but this video made them so simple and understandable, just what i needed as my mocks are in a couple weeks!!! :)

  • @lizzyrose398
    @lizzyrose398 2 роки тому +2

    thank you! I missed my last chemistry lesson which was on this, and I was totally clueless as to what was going on since I hadn't learnt it. I watched so many videos but none helped apart from this one! I have had to try to teach it to myself, so thank you so much for this, i really cannot explain how much its helped me, and its not the first time that your videos have just made me get something so easily. THANK YOU!!!!

  • @saadpatel2734
    @saadpatel2734 6 років тому +2

    I like the way you explain the on the board....traditional and best way to learn due to interactions and what I like...Thanks sir..You saved my grade..so useful I used to watch this sir everyday after lessons and got me A in As level chemistry...Thanks and keep it up

  • @hayleighl7160
    @hayleighl7160 5 років тому +2

    The best explanation I have ever seen!!! Thank you so much!!!

  • @hikmatmakinde7934
    @hikmatmakinde7934 3 роки тому +7

    I really appreciate this video .It makes it make so much sense..You actually answered a lot of my questions

  • @tianagoulbourne243
    @tianagoulbourne243 5 років тому +2

    omg where has this video been?? The best video of hess's Law

  • @TheAttic22
    @TheAttic22 7 років тому +3

    This is a topic I had troubles with since semester 1 and I didn't solve it until today. Thanks a lot for this informative and easy to understand video !

    • @AlleryChemistry
      @AlleryChemistry  7 років тому

      Yes it is difficult! But important to know so I'm pleased you understand it now.

    • @TheAttic22
      @TheAttic22 7 років тому

      Allery Chemistry 😀

  • @Salma-uj2js
    @Salma-uj2js 4 роки тому +4

    Thank god i found this video, i got a chemistry mock exam tomorrow and this was the part i was struggling on but now i fINALLY understand:) thank you sir

    • @2eioia
      @2eioia 3 роки тому

      Was it helpful?

  • @ism_5002
    @ism_5002 2 роки тому +2

    absolute life saver. i always hated this topic thanks to you its now my favourite

  • @mariachentout6613
    @mariachentout6613 Рік тому +1

    I finally understand this after I kept messing up the signs!! Thank you so much!!!!

  • @freddytate7396
    @freddytate7396 5 років тому

    Absolute legend, I have never understood this before, now 1 week before my exam I finally do, thank you so much!

  • @OldSJF
    @OldSJF Рік тому +1

    Watched this guy during my A-Levels now I’m back for my final year of degree….true goat

  • @rachelmoore1516
    @rachelmoore1516 6 років тому +1

    Just had a go at the calculations before you did them and I got them both right! Absolutely buzzing now that I understand it more.. HESS CYCLES ARE NO LONGER SCARY!

  • @leefarhana3148
    @leefarhana3148 7 років тому +14

    OMG thank u so much!!! u saved me!!!!!! Finally understood this concept!!!

  • @rahmamohamed9664
    @rahmamohamed9664 6 років тому

    Very well explained.thanks a million.God will always bless you.
    From a mom who is teaching her children.

  • @kabilaashp7915
    @kabilaashp7915 7 років тому +3

    im in love with the way you teach you are a great person!

  • @kogulkrishna8442
    @kogulkrishna8442 3 роки тому +2

    ayo my guy came in clutch!!!!!

  • @pinkjellybeans12
    @pinkjellybeans12 6 років тому

    Literally just saved my life for my chem test tomorrow - thank you!!

  • @sarujan02thangavel93
    @sarujan02thangavel93 4 роки тому +1

    Youre explanations are always straight-forward sir! Thank you.👍

  • @abigailowusua6509
    @abigailowusua6509 6 років тому +1

    thank you so much for the video, i didn't understand Hess's Law until i watched this.And i am glad to say that it helped me understand it so much better.

  • @hydrogenperoxide7244
    @hydrogenperoxide7244 5 років тому +2

    Bless the existence of this video I'm literally cramming for my finals tmr😂

  • @TheBest-fj4qy
    @TheBest-fj4qy 5 років тому

    You are the best teacher ever!!! You just cleared all the doubts I had in this topic!!! I can't thank u enough!!! Lots of love from Bangladesh!!!!! 🍀🌹🍀

  • @artsybuni775
    @artsybuni775 2 роки тому +1

    thank you so much sir
    was getting very anxious, this helped me loads!

  • @antoshkin_domik4511
    @antoshkin_domik4511 5 років тому +3

    Its the best tutorial on Hess's Law! Yesterday I taught my student using this approach and they told me it really made things clearer!! Thanks! I would apreciate if you could do Enthalpy level diagrams for AS AQA in the same way, would be amazing!

  • @itzbigdelly3118
    @itzbigdelly3118 2 роки тому +2

    I'm currently in year 12 preparing for my end of year exams which start on june 20th, these videos have helped me understand the energetics topic that I have struggled with, thank you so much, im aiming for at least an ABB in chemistry, biology and business studies

    • @AlleryChemistry
      @AlleryChemistry  2 роки тому

      Good luck

    • @arlobryant4231
      @arlobryant4231 2 роки тому

      @@AlleryChemistry sir do you have any main websites that teachers get exam questions/inspiration from?

    • @gutso5749
      @gutso5749 2 роки тому

      Business studies instead of maths ?

    • @beomgyusberry5773
      @beomgyusberry5773 2 роки тому

      @@arlobryant4231 a lot of teachers get questions from physics and maths tutor so I recommend looking at that

  • @Matthew-xm9sp
    @Matthew-xm9sp 7 років тому +1

    Thank god I found this you've saved my life

  • @fearlessbaek1583
    @fearlessbaek1583 4 роки тому +2

    i just did my chemistry mock paper 1 and i just want to say a big thank you for your videos because even if i don't get high scores i actually didn't feel like i knew nothing on the paper and actually had a go at all the questions so thank you so much. hopefully ill be even more prepared for the actual exam in june

    • @2eioia
      @2eioia 3 роки тому

      Is it really? Because i’m finding difficulty in chemistry and idk if i should watch his videos as a resource

  • @hellokiwi25
    @hellokiwi25 6 років тому +2

    I'd feel terrible if I didn't thank you for this amazing video- thank you so so much for making this topic so easy to understand, I was really struggling with this as the textbook explanation was pretty confusing. Thanks again!

  • @senadijayasinghe3379
    @senadijayasinghe3379 4 роки тому +1

    Now that lesson was a life saver .....thank you very much

  • @TanviKhire
    @TanviKhire Рік тому

    I nearly jumped out of my skin when I saw this section. Thanks a ton for untangling the twisted Knots.

  • @moa7651
    @moa7651 Рік тому +2

    Proper legend!!!

    • @moa7651
      @moa7651 Рік тому

      sir can u do harder questions

  • @saminaaqeel2063
    @saminaaqeel2063 7 років тому

    Please never stop making these amazing videos! you are a great help

  • @oneeyedking5948
    @oneeyedking5948 6 років тому +3

    Cheers bro this was really helpful for my revision if I do well in my test it’s because of you

  • @beatricelioy9263
    @beatricelioy9263 5 років тому

    Amazing video, you actually give us the time to follow you as you go through everything quite slowly, which is quite rare in science videos. Even better for foreign students like myself. Thank you! Really really loved it

  • @pamudlakshan8171
    @pamudlakshan8171 6 років тому

    i wish that i could have met u before sir, cuz this lesson is so easy for me now. thanks a lot sir....

  • @a.human.
    @a.human. 6 років тому +1

    I just wanted to say, THANK YOU FOR EXISTING.

  • @laurenhancock4181
    @laurenhancock4181 3 роки тому +3

    THANK YOU

  • @ShirinRose
    @ShirinRose 3 роки тому +1

    2:24 "the little Underground symbol" haha I can't unsee that now 😂🚂

  • @skylawhite3519
    @skylawhite3519 7 років тому +2

    Sitting the Cambridge Chemistry Challenge tomorrow and this video has helped me so much! Thank You

  • @GeorgeHoque
    @GeorgeHoque 5 років тому +1

    this video really helped! I have my A level chem in 2 days; this helped me understand! thank you

  • @navodadesilva
    @navodadesilva 8 років тому +7

    This was really helpful for me Thank you SO MUCH!!!!

  • @daisylawrence7447
    @daisylawrence7447 Рік тому +1

    11:49 when working out standard enthalpy of combustion, why do we have to against the arrows and not the other direction, with the arrows? (why couldn't it be -86-2734 = -2820 rather than 86+2734 as you do in the video). Is either way correct? Also thank you so much, this video is really helpful!

  • @sabinaaslam4049
    @sabinaaslam4049 4 роки тому

    My teacher confused me soo much but your video made it soo easy for me, thank you so much!

    • @sabinaaslam4049
      @sabinaaslam4049 4 роки тому

      I wish you were my chemistry teacher instead 😂

  • @priscillapereira237
    @priscillapereira237 5 років тому

    wowowow you just saved me for my test tomorrow, my teacher does not know how to teach, i got it straight away with you. :D

  • @lilyfisher8966
    @lilyfisher8966 7 років тому +2

    You have made this so easy! I will definitely be using your videos for the next two years! Its great to find someone who is able to explain these topics so well, especially chemistry being so hard! Do you have any tips on getting your head around exam questions? Thank you!

  • @rohinikayal4440
    @rohinikayal4440 2 роки тому

    Wonderful explanation, just all of it summarized so well!

  • @HyperDavester
    @HyperDavester 2 роки тому +1

    Great video! The concept was taught really well, appreciate the help.

  • @skyblue4281
    @skyblue4281 5 років тому

    This man is a blessing for me😘😘❤

  • @thatjalebi1009
    @thatjalebi1009 8 місяців тому

    KING ALLERY LONG LIVE THE KING

  • @jubzlcl9140
    @jubzlcl9140 6 років тому

    I literally didn't understand this till i watched this video. thanks alot.

  • @cristianmusat3148
    @cristianmusat3148 Рік тому +1

    Very useful video, clear explanation! Thank you

  • @nikdanhawoor4675
    @nikdanhawoor4675 5 років тому +1

    Cheers needed to learn this as got a U in my year 12 mocks really helped me

    • @j.p.6716
      @j.p.6716 4 роки тому

      Nik Danhawoor I felt that

  • @studilicious8844
    @studilicious8844 7 років тому +1

    thank you so much!!! your video was the most straightforward and simple to understand!!! may allah reward you with goodness

  • @mufc109
    @mufc109 7 років тому +63

    Never mind a mourinho masterclass against Chelsea yesterday this is an allery chemistry masterclass in Hess's cycles 😂👌

    • @AlleryChemistry
      @AlleryChemistry  7 років тому +13

      Heh! Thanks, what a result it was for the red devils! My local side Newcastle will be challenging you lot next season!

    • @mufc109
      @mufc109 7 років тому +1

      Allery Chemistry Ipswich were a bit of a struggle never mind united 😉😂

    • @AlleryChemistry
      @AlleryChemistry  7 років тому +11

      Yes. Newcastle supporters get used to inconsistency. They are a nightmare for the bookies. I have my real club - Morpeth Town FC - great football, only lost 1 game at home all season and won the rest! FA Vase holders too!! Nice to see a team that delivers time and time again!

  • @2207hhpw
    @2207hhpw 6 років тому +1

    Thank you for this! You really helped me a lot, You are an amazing person.

  • @Jellybean-vc6wm
    @Jellybean-vc6wm 2 роки тому +1

    This is explained very well, thanks!

  • @misbaakthar345
    @misbaakthar345 3 роки тому

    Wonderful, short & concise tutorial, fab work 👏👏

  • @fantomzone9477
    @fantomzone9477 3 роки тому

    you can tell that this man is a genuinely good guy really m8

  • @royaf7261
    @royaf7261 5 років тому +1

    this was amazing! thanks so much ur actually a legend u saved my life !!

  • @shihamafazil7122
    @shihamafazil7122 8 років тому +1

    Thanks a lot this helped me soo much. May God bless you always.

    • @AlleryChemistry
      @AlleryChemistry  8 років тому

      No problem! Please share the vid. The more people that use it the better!

    • @shihamafazil7122
      @shihamafazil7122 8 років тому +1

      sure I will xo

  • @lailaalbuquerque873
    @lailaalbuquerque873 6 років тому

    My teacher couldn't even be bothered to teach me this properly, so it really means a lot :)

  • @DimChordsRFire
    @DimChordsRFire 4 роки тому +1

    Excellent! You’re the man! 👊🏿

  • @kingmvs2857
    @kingmvs2857 3 роки тому +1

    Thanks alot. Perfect explained

  • @zkillerwolfz3308
    @zkillerwolfz3308 4 роки тому +2

    Only video that made me understand thank you, you bald legend! :)

  • @suhanishah7190
    @suhanishah7190 3 роки тому +2

    Thank You, this helped me a lot !!!

  • @rowanfahmi197
    @rowanfahmi197 3 роки тому +1

    it was helpful for me , many thx and btw you have a great technique in explaining

  • @kiran4078
    @kiran4078 3 роки тому

    i struggled with this concept sm, but this video was super helpful, i think i've got it now, thank you so much! (:

  • @Rinriji
    @Rinriji 6 років тому +1

    Thank you so much omg I was struggling in class on this topic

  • @debbieade6523
    @debbieade6523 5 років тому +1

    SIR PLEASE HELP I get extremely confused when given combustion data and asked to work out the enthalpy change of formation etc etc PLEASE HELP ive lost marks because of it :(

  • @manhaabdellah2682
    @manhaabdellah2682 2 роки тому +1

    best video about hess cycle...finally understood!👌👏🎉

  • @shaheer_04
    @shaheer_04 Рік тому

    Thank you sir, grateful for your help.

  • @malikzioud
    @malikzioud Рік тому

    this man is amazing
    just pure class

  • @nithuluday9920
    @nithuluday9920 5 років тому

    u are a legend my good sir i get hess's law very well now thanks👍👍👍👍

  • @misbaakthar345
    @misbaakthar345 7 років тому +1

    you're videos are amazing I love them defiantly recommend you to all my friends who are doing chemistry

  • @minimalgoncalo
    @minimalgoncalo 7 років тому +2

    Thank you very much!

  • @sulaymaankhan4525
    @sulaymaankhan4525 7 років тому

    recommended your videos to my friends and subscribed very helpful for a level chemistry thanks

  • @u.n258
    @u.n258 7 років тому +6

    actual legend! the only video that acc helped me w hess cycle is this video thank you :))))

    • @AlleryChemistry
      @AlleryChemistry  7 років тому +1

      Heh. Thanks very much! Yes Hess' cycles can be a bit strange at first but I hope I've explained it enough to see that they actually can be pretty useful! Work smarter not harder!

  • @OriginalDawg
    @OriginalDawg 9 місяців тому

    bro is and will always be the goat 🔥🔥🐐🐐

  • @zarawilson3327
    @zarawilson3327 6 років тому +4

    Does anyone know how you work out Hess' Law of combustion/formation if the values given from an equation?

  • @kivelle7435
    @kivelle7435 6 років тому

    Keep up the good work! This channel really helps !!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  • @Kabi_O
    @Kabi_O 7 років тому

    You honestly helped me so much thank you!! Now I fully understand this