Hess's Law and Cycles

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.

Пікірлер: 357

  • @chroniclesofaishaxo7008
    @chroniclesofaishaxo70087 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

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

  • @goharkhan2627
    @goharkhan26277 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    Grade A comment too! Thanks for that!

  • @haroon4330

    @haroon4330

    6 жыл бұрын

    kids? u fucking muppet u probably got a U grade

  • @saadpatel2734

    @saadpatel2734

    5 жыл бұрын

    same here

  • @carefull8365

    @carefull8365

    4 жыл бұрын

    Will do

  • @igcse-bz4qo

    @igcse-bz4qo

    4 жыл бұрын

    Can I use these videos for Cambridge syllabus too ?

  • @sabirl9232
    @sabirl9232 Жыл бұрын

    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

    Жыл бұрын

    You're welcome!

  • @sarahkhan5317
    @sarahkhan53177 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    No problem.

  • @senalperera3728
    @senalperera37284 жыл бұрын

    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
    @vishnukrishna86327 жыл бұрын

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

  • @rictiovaros3768
    @rictiovaros37687 жыл бұрын

    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
    @GreenDayLfcRule7 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    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
    @fahmidababul97477 жыл бұрын

    great video-best explanation on KZread :D

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    Thanks very much. Pleased it helped you!

  • @saminaaqeel2063
    @saminaaqeel20636 жыл бұрын

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

  • @sarujan02thangavel93
    @sarujan02thangavel934 жыл бұрын

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

  • @bensonthomas197
    @bensonthomas1977 жыл бұрын

    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 жыл бұрын

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

  • @isaacpatch7725
    @isaacpatch77253 жыл бұрын

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

  • @katierosexx4764
    @katierosexx47643 жыл бұрын

    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!!! :)

  • @ndilimevavanamoloh1554
    @ndilimevavanamoloh1554 Жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    Жыл бұрын

    You're very welcome!

  • @beatricelioy9263
    @beatricelioy92635 жыл бұрын

    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

  • @hayleighl7160
    @hayleighl71605 жыл бұрын

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

  • @lizzyrose398
    @lizzyrose3982 жыл бұрын

    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!!!!

  • @kabilaashp7915
    @kabilaashp79156 жыл бұрын

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

  • @freddytate7396
    @freddytate73965 жыл бұрын

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

  • @upraz1930
    @upraz19307 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    You're welcome!

  • @TheBest-fj4qy
    @TheBest-fj4qy5 жыл бұрын

    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!!!!! 🍀🌹🍀

  • @abigailowusua6509
    @abigailowusua65096 жыл бұрын

    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.

  • @navodadesilva
    @navodadesilva7 жыл бұрын

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

  • @rohinikayal4440
    @rohinikayal44402 жыл бұрын

    Wonderful explanation, just all of it summarized so well!

  • @higuys6881
    @higuys68815 жыл бұрын

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

  • @HyperDavester
    @HyperDavester Жыл бұрын

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

  • @misbaakthar345
    @misbaakthar3453 жыл бұрын

    Wonderful, short & concise tutorial, fab work 👏👏

  • @hikmatmakinde7934
    @hikmatmakinde79343 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    3 жыл бұрын

    No problem!

  • @pinkjellybeans12
    @pinkjellybeans126 жыл бұрын

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

  • @rahmamohamed9664
    @rahmamohamed96646 жыл бұрын

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

  • @2207hhpw
    @2207hhpw5 жыл бұрын

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

  • @artsybuni775
    @artsybuni775 Жыл бұрын

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

  • @hellokiwi25
    @hellokiwi256 жыл бұрын

    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!

  • @hlovestxt8726
    @hlovestxt8726 Жыл бұрын

    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

  • @AlleryChemistry

    @AlleryChemistry

    Жыл бұрын

    You're very welcome!

  • @tianagoulbourne243
    @tianagoulbourne2435 жыл бұрын

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

  • @saadpatel2734
    @saadpatel27345 жыл бұрын

    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

  • @oneeyedking5948
    @oneeyedking59485 жыл бұрын

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

  • @Kabi_O
    @Kabi_O6 жыл бұрын

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

  • @sjdecosta8186
    @sjdecosta81864 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    4 жыл бұрын

    You're very welcome. Pleased it helped! 👍

  • @GeorgeHoque
    @GeorgeHoque5 жыл бұрын

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

  • @rachelmoore1516
    @rachelmoore15166 жыл бұрын

    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!

  • @antoshkin_domik4511
    @antoshkin_domik45114 жыл бұрын

    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!

  • @rowanfahmi197
    @rowanfahmi1973 жыл бұрын

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

  • @leefarhana3148
    @leefarhana31487 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    6 жыл бұрын

    No problem

  • @royaf7261
    @royaf72615 жыл бұрын

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

  • @kiran4078
    @kiran40783 жыл бұрын

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

  • @hydrogenperoxide7244
    @hydrogenperoxide72444 жыл бұрын

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

  • @Jellybean-vc6wm
    @Jellybean-vc6wm Жыл бұрын

    This is explained very well, thanks!

  • @cristianmusat3148
    @cristianmusat3148 Жыл бұрын

    Very useful video, clear explanation! Thank you

  • @AlleryChemistry

    @AlleryChemistry

    Жыл бұрын

    You are welcome!

  • @sulaymaankhan4525
    @sulaymaankhan45256 жыл бұрын

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

  • @crimpy663
    @crimpy6632 ай бұрын

    This was an extremely helpful video. Thank you!

  • @AlleryChemistry

    @AlleryChemistry

    2 ай бұрын

    You're very welcome!

  • @fearlessbaek1583
    @fearlessbaek15834 жыл бұрын

    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 жыл бұрын

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

  • @suhanishah7190
    @suhanishah71903 жыл бұрын

    Thank You, this helped me a lot !!!

  • @mohammadmiah9727
    @mohammadmiah97272 жыл бұрын

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

  • @TheAttic22
    @TheAttic226 жыл бұрын

    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 жыл бұрын

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

  • @TheAttic22

    @TheAttic22

    6 жыл бұрын

    Allery Chemistry 😀

  • @pamudlakshan8171
    @pamudlakshan81715 жыл бұрын

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

  • @Salma-uj2js
    @Salma-uj2js4 жыл бұрын

    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 жыл бұрын

    Was it helpful?

  • @shaheer_04
    @shaheer_04 Жыл бұрын

    Thank you sir, grateful for your help.

  • @AlleryChemistry

    @AlleryChemistry

    Жыл бұрын

    You're welcome 😊

  • @irenetanou4276
    @irenetanou42765 жыл бұрын

    Excellent explanation Thank you

  • @nithuluday9920
    @nithuluday99205 жыл бұрын

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

  • @lilyfisher8966
    @lilyfisher89666 жыл бұрын

    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!

  • @OldSJF
    @OldSJF8 ай бұрын

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

  • @mariachentout6613
    @mariachentout6613 Жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    Жыл бұрын

    Glad it helped!

  • @kivelle7435
    @kivelle74355 жыл бұрын

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

  • @studilicious8844
    @studilicious88446 жыл бұрын

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

  • @misbaakthar345
    @misbaakthar3457 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    Thanks very much!

  • @tanvikhire1866
    @tanvikhire18664 ай бұрын

    Thanks a lot sir. Your videos are amazing!!

  • @AlleryChemistry

    @AlleryChemistry

    4 ай бұрын

    Glad you like them!

  • @mufc109
    @mufc1097 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    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 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    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!

  • @rula4026
    @rula40267 жыл бұрын

    this has helped so much!!!! thank you

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    Fab! Hope the revision is going well.

  • @michaelknapman5579
    @michaelknapman55796 жыл бұрын

    Fantastic stuff

  • @senadijayasinghe3379
    @senadijayasinghe33793 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    3 жыл бұрын

    Glad it helped!

  • @kingmvs2857
    @kingmvs28572 жыл бұрын

    Thanks alot. Perfect explained

  • @a.human.
    @a.human.5 жыл бұрын

    I just wanted to say, THANK YOU FOR EXISTING.

  • @Matthew-xm9sp
    @Matthew-xm9sp6 жыл бұрын

    Thank god I found this you've saved my life

  • @Rinriji
    @Rinriji6 жыл бұрын

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

  • @hamza4718
    @hamza47185 жыл бұрын

    that was a real good video, you explain really well

  • @jubzlcl9140
    @jubzlcl91405 жыл бұрын

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

  • @RexDanny997
    @RexDanny9975 жыл бұрын

    Simply superb

  • @shihamafazil7122
    @shihamafazil71227 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

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

  • @shihamafazil7122

    @shihamafazil7122

    7 жыл бұрын

    sure I will xo

  • @tanvirhossain6011
    @tanvirhossain60115 жыл бұрын

    thanks...it was very helpful

  • @pintohoareau579
    @pintohoareau5797 жыл бұрын

    THank you sir.. really appreciate the video.

  • @lenasiemienowicz1117
    @lenasiemienowicz11173 жыл бұрын

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

  • @naskhan1739
    @naskhan17395 жыл бұрын

    excellent explanation

  • @minimalgoncalo
    @minimalgoncalo7 жыл бұрын

    Thank you very much!

  • @BigBoss-rb1tb
    @BigBoss-rb1tb7 жыл бұрын

    Life saver,thanks genuinely appreciate it 👍

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

    You're welcome!

  • @samsonclement7604
    @samsonclement76043 жыл бұрын

    Thank you!

  • @kogulkrishna8442
    @kogulkrishna84422 жыл бұрын

    ayo my guy came in clutch!!!!!

  • @priscillapereira237
    @priscillapereira2374 жыл бұрын

    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

  • @aamirbangash985
    @aamirbangash9857 жыл бұрын

    Great work!!

  • @AlleryChemistry

    @AlleryChemistry

    7 жыл бұрын

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

  • @amoolak
    @amoolak9 ай бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    9 ай бұрын

    No problem 😊

  • @nikdanhawoor4675
    @nikdanhawoor46755 жыл бұрын

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

  • @j.p.6716

    @j.p.6716

    4 жыл бұрын

    Nik Danhawoor I felt that

  • @Tobezzz1
    @Tobezzz16 жыл бұрын

    Cheers, really helped me!!

  • @zkillerwolfz3308
    @zkillerwolfz33083 жыл бұрын

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

  • @AlleryChemistry

    @AlleryChemistry

    3 жыл бұрын

    You're welcome!

  • @twice4846
    @twice48464 жыл бұрын

    Well done thanks!

  • @AlleryChemistry

    @AlleryChemistry

    4 жыл бұрын

    No problem 👍

  • @hollyyupyup2654
    @hollyyupyup26545 жыл бұрын

    thank you! i finally understand this! Grazie mille

  • @JimJam-ju6vn
    @JimJam-ju6vn3 жыл бұрын

    thank you so much!!!

  • @victory4333
    @victory43336 жыл бұрын

    thank you so much sir. i really appreciate.

  • @aimalimran3395
    @aimalimran33954 жыл бұрын

    Thank u so much u are an absolute life saviour

  • @ShirinRose
    @ShirinRose3 жыл бұрын

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