Hess's Law and Cycles

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  • เผยแพร่เมื่อ 17 ก.ย. 2016
  • The dreaded Hess's cycle I hear you cry! Hopefully this video will put those Hess's demons to rest. Take a look to find out how you use a Hess's cycle and how to draw them correctly in order to work out enthalpy of reaction, combustion and formation.

ความคิดเห็น • 357

  • @goharkhan2627
    @goharkhan2627 7 ปีที่แล้ว +475

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

    • @AlleryChemistry
      @AlleryChemistry  7 ปีที่แล้ว +146

      Grade A comment too! Thanks for that!

    • @haroon4330
      @haroon4330 6 ปีที่แล้ว +15

      kids? u fucking muppet u probably got a U grade

    • @saadpatel2734
      @saadpatel2734 5 ปีที่แล้ว +1

      same here

    • @carefull8365
      @carefull8365 4 ปีที่แล้ว

      Will do

    • @igcse-bz4qo
      @igcse-bz4qo 4 ปีที่แล้ว +2

      Can I use these videos for Cambridge syllabus too ?

  • @chroniclesofaishaxo7008
    @chroniclesofaishaxo7008 7 ปีที่แล้ว +196

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

    • @AlleryChemistry
      @AlleryChemistry  7 ปีที่แล้ว +42

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

  • @sabirl9232
    @sabirl9232 ปีที่แล้ว +72

    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

  • @sarahkhan5317
    @sarahkhan5317 7 ปีที่แล้ว +189

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

  • @senalperera3728
    @senalperera3728 4 ปีที่แล้ว +30

    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 !!

  • @vishnukrishna8632
    @vishnukrishna8632 7 ปีที่แล้ว +43

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

  • @rictiovaros3768
    @rictiovaros3768 7 ปีที่แล้ว +36

    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 ปีที่แล้ว +21

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

    • @AlleryChemistry
      @AlleryChemistry  7 ปีที่แล้ว +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!

  • @fahmidababul9747
    @fahmidababul9747 7 ปีที่แล้ว +62

    great video-best explanation on TH-cam :D

    • @AlleryChemistry
      @AlleryChemistry  7 ปีที่แล้ว +4

      Thanks very much. Pleased it helped you!

  • @bensonthomas197
    @bensonthomas197 7 ปีที่แล้ว +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 ปีที่แล้ว +12

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

  • @isaacpatch7725
    @isaacpatch7725 3 ปีที่แล้ว +3

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

  • @katierosexx4764
    @katierosexx4764 3 ปีที่แล้ว +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!!! :)

  • @saminaaqeel2063
    @saminaaqeel2063 6 ปีที่แล้ว

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

  • @ndilimevavanamoloh1554
    @ndilimevavanamoloh1554 ปีที่แล้ว +4

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

  • @hayleighl7160
    @hayleighl7160 5 ปีที่แล้ว +2

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

  • @upraz1930
    @upraz1930 7 ปีที่แล้ว +24

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

  • @hikmatmakinde7934
    @hikmatmakinde7934 3 ปีที่แล้ว +7

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

  • @higuys6881
    @higuys6881 5 ปีที่แล้ว +1

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

  • @sarujan02thangavel93
    @sarujan02thangavel93 4 ปีที่แล้ว +1

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

  • @freddytate7396
    @freddytate7396 5 ปีที่แล้ว

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

  • @beatricelioy9263
    @beatricelioy9263 5 ปีที่แล้ว

    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

  • @lizzyrose398
    @lizzyrose398 2 ปีที่แล้ว +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!!!!

  • @abigailowusua6509
    @abigailowusua6509 6 ปีที่แล้ว +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.

  • @kabilaashp7915
    @kabilaashp7915 6 ปีที่แล้ว +3

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

  • @sjdecosta8186
    @sjdecosta8186 4 ปีที่แล้ว +1

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

    • @AlleryChemistry
      @AlleryChemistry  4 ปีที่แล้ว

      You're very welcome. Pleased it helped! 👍

  • @TheBest-fj4qy
    @TheBest-fj4qy 5 ปีที่แล้ว

    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!!!!! 🍀🌹🍀

  • @navodadesilva
    @navodadesilva 7 ปีที่แล้ว +7

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

  • @OldSJF
    @OldSJF 8 หลายเดือนก่อน +1

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

  • @pinkjellybeans12
    @pinkjellybeans12 6 ปีที่แล้ว

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

  • @saadpatel2734
    @saadpatel2734 5 ปีที่แล้ว +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

  • @2207hhpw
    @2207hhpw 5 ปีที่แล้ว +1

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

  • @royaf7261
    @royaf7261 5 ปีที่แล้ว +1

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

  • @hlovestxt8726
    @hlovestxt8726 ปีที่แล้ว +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

  • @leefarhana3148
    @leefarhana3148 7 ปีที่แล้ว +14

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

  • @artsybuni775
    @artsybuni775 ปีที่แล้ว +1

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

  • @hydrogenperoxide7244
    @hydrogenperoxide7244 4 ปีที่แล้ว +2

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

  • @oneeyedking5948
    @oneeyedking5948 5 ปีที่แล้ว +3

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

  • @hellokiwi25
    @hellokiwi25 6 ปีที่แล้ว +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!

  • @rahmamohamed9664
    @rahmamohamed9664 6 ปีที่แล้ว

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

  • @GeorgeHoque
    @GeorgeHoque 5 ปีที่แล้ว +1

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

  • @rohinikayal4440
    @rohinikayal4440 2 ปีที่แล้ว

    Wonderful explanation, just all of it summarized so well!

  • @Kabi_O
    @Kabi_O 6 ปีที่แล้ว

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

  • @HyperDavester
    @HyperDavester ปีที่แล้ว +1

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

  • @rachelmoore1516
    @rachelmoore1516 6 ปีที่แล้ว +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!

  • @tianagoulbourne243
    @tianagoulbourne243 5 ปีที่แล้ว +2

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

  • @kiran4078
    @kiran4078 3 ปีที่แล้ว

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

  • @mohammadmiah9727
    @mohammadmiah9727 2 ปีที่แล้ว +2

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

  • @antoshkin_domik4511
    @antoshkin_domik4511 4 ปีที่แล้ว +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!

  • @TheAttic22
    @TheAttic22 6 ปีที่แล้ว +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  6 ปีที่แล้ว

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

    • @TheAttic22
      @TheAttic22 6 ปีที่แล้ว

      Allery Chemistry 😀

  • @misbaakthar345
    @misbaakthar345 3 ปีที่แล้ว

    Wonderful, short & concise tutorial, fab work 👏👏

  • @Salma-uj2js
    @Salma-uj2js 4 ปีที่แล้ว +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 ปีที่แล้ว

      Was it helpful?

  • @fearlessbaek1583
    @fearlessbaek1583 4 ปีที่แล้ว +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 ปีที่แล้ว

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

  • @misbaakthar345
    @misbaakthar345 7 ปีที่แล้ว +1

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

  • @Matthew-xm9sp
    @Matthew-xm9sp 6 ปีที่แล้ว +1

    Thank god I found this you've saved my life

  • @mariachentout6613
    @mariachentout6613 ปีที่แล้ว +1

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

  • @studilicious8844
    @studilicious8844 6 ปีที่แล้ว +1

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

  • @a.human.
    @a.human. 5 ปีที่แล้ว +1

    I just wanted to say, THANK YOU FOR EXISTING.

  • @rowanfahmi197
    @rowanfahmi197 3 ปีที่แล้ว +1

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

  • @cristianmusat3148
    @cristianmusat3148 ปีที่แล้ว +1

    Very useful video, clear explanation! Thank you

  • @senadijayasinghe3379
    @senadijayasinghe3379 3 ปีที่แล้ว +1

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

  • @lilyfisher8966
    @lilyfisher8966 6 ปีที่แล้ว +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!

  • @suhanishah7190
    @suhanishah7190 3 ปีที่แล้ว +2

    Thank You, this helped me a lot !!!

  • @Jellybean-vc6wm
    @Jellybean-vc6wm ปีที่แล้ว +1

    This is explained very well, thanks!

  • @pamudlakshan8171
    @pamudlakshan8171 5 ปีที่แล้ว

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

  • @crimpy663
    @crimpy663 2 หลายเดือนก่อน

    This was an extremely helpful video. Thank you!

  • @rula4026
    @rula4026 7 ปีที่แล้ว +3

    this has helped so much!!!! thank you

    • @AlleryChemistry
      @AlleryChemistry  7 ปีที่แล้ว

      Fab! Hope the revision is going well.

  • @BigBoss-rb1tb
    @BigBoss-rb1tb 7 ปีที่แล้ว +2

    Life saver,thanks genuinely appreciate it 👍

  • @sulaymaankhan4525
    @sulaymaankhan4525 6 ปีที่แล้ว

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

  • @nithuluday9920
    @nithuluday9920 5 ปีที่แล้ว

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

  • @jubzlcl9140
    @jubzlcl9140 5 ปีที่แล้ว

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

  • @shihamafazil7122
    @shihamafazil7122 7 ปีที่แล้ว +1

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

    • @AlleryChemistry
      @AlleryChemistry  7 ปีที่แล้ว

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

    • @shihamafazil7122
      @shihamafazil7122 7 ปีที่แล้ว +1

      sure I will xo

  • @Rinriji
    @Rinriji 6 ปีที่แล้ว +1

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

  • @shaheer_04
    @shaheer_04 ปีที่แล้ว

    Thank you sir, grateful for your help.

  • @kogulkrishna8442
    @kogulkrishna8442 2 ปีที่แล้ว +2

    ayo my guy came in clutch!!!!!

  • @kivelle7435
    @kivelle7435 5 ปีที่แล้ว

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

  • @nikdanhawoor4675
    @nikdanhawoor4675 5 ปีที่แล้ว +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 ปีที่แล้ว

      Nik Danhawoor I felt that

  • @mufc109
    @mufc109 7 ปีที่แล้ว +63

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

    • @AlleryChemistry
      @AlleryChemistry  7 ปีที่แล้ว +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 ปีที่แล้ว +1

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

    • @AlleryChemistry
      @AlleryChemistry  7 ปีที่แล้ว +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!

  • @amoolak
    @amoolak 9 หลายเดือนก่อน

    this helped me so much thankyou i understand it now after just 20 mins :)

  • @priscillapereira237
    @priscillapereira237 4 ปีที่แล้ว

    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

  • @tanvikhire1866
    @tanvikhire1866 4 หลายเดือนก่อน

    Thanks a lot sir. Your videos are amazing!!

  • @minimalgoncalo
    @minimalgoncalo 7 ปีที่แล้ว +2

    Thank you very much!

  • @kingmvs2857
    @kingmvs2857 2 ปีที่แล้ว +1

    Thanks alot. Perfect explained

  • @TanviKhire
    @TanviKhire 7 หลายเดือนก่อน

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

  • @lenasiemienowicz1117
    @lenasiemienowicz1117 3 ปีที่แล้ว

    thank you sm. You just saved my mocks grade :)

  • @irenetanou4276
    @irenetanou4276 5 ปีที่แล้ว

    Excellent explanation
    Thank you

  • @skylawhite3519
    @skylawhite3519 7 ปีที่แล้ว +2

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

  • @twice4846
    @twice4846 4 ปีที่แล้ว +1

    Well done thanks!

  • @hamza4718
    @hamza4718 5 ปีที่แล้ว

    that was a real good video, you explain really well

  • @skyblue4281
    @skyblue4281 4 ปีที่แล้ว

    This man is a blessing for me😘😘❤

  • @sabinaaslam4049
    @sabinaaslam4049 3 ปีที่แล้ว

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

    • @sabinaaslam4049
      @sabinaaslam4049 3 ปีที่แล้ว

      I wish you were my chemistry teacher instead 😂

  • @DimChordsRFire
    @DimChordsRFire 3 ปีที่แล้ว +1

    Excellent! You’re the man! 👊🏿

  • @manhaabdellah2682
    @manhaabdellah2682 2 ปีที่แล้ว +1

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

  • @RexDanny997
    @RexDanny997 5 ปีที่แล้ว

    Simply superb

  • @pintohoareau579
    @pintohoareau579 7 ปีที่แล้ว

    THank you sir.. really appreciate the video.

  • @samsonclement7604
    @samsonclement7604 3 ปีที่แล้ว +1

    Thank you!

  • @MD-ro9jz
    @MD-ro9jz 7 ปีที่แล้ว +2

    I appreciate this so much

  • @zkillerwolfz3308
    @zkillerwolfz3308 3 ปีที่แล้ว +2

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

  • @laurenhancock4181
    @laurenhancock4181 2 ปีที่แล้ว +3

    THANK YOU

  • @michaelknapman5579
    @michaelknapman5579 6 ปีที่แล้ว

    Fantastic stuff

  • @aamirbangash985
    @aamirbangash985 7 ปีที่แล้ว +2

    Great work!!

    • @AlleryChemistry
      @AlleryChemistry  7 ปีที่แล้ว

      Thanks vey much! Please share the vid, the more people that see it the better!