How to Draw Energy Cycle for Enthalpy Change of Formation - Energetics

[@roriefriz9068]

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[@fatin4400]

Hi im student from malaysia..thank u so much sir for this useful video u help me a lot 😊👍

[@cesbon]

Just subsribed! Well explained sir. You've covered almost all the parts of this section just as my reference book but is more explanation and detail. Thank you so much sir!

[@qiaoyilim8572]

thank you so much this video convinced me to hang on to h2 chem for a little while longer i hope you know how much of a difference you've made to me please never stop doing this

[@ChemistryGuru]

Hi Qiaoyi thanks for the kind words. Jiayou and keep fighting! :)

[@patrecepascal5448]

This video was so helpful i didn't understand anything my teacher explained. thank you so much!!!

[@nabilahhusna8092]

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[@hassanjunaid6496]

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[@luanhurter4547]

Wow, I actually understand. Thank you so much!

[@naveedhasan6738]

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[@deepikafernando9414]

Thank u ...very useful video..cary on...😊

[@m3ronnn]

This was really helpful, thank you :)

[@tamarazvarayi3955]

makes much more sense! thank you

[@ChemistryGuru]

Hi Tamara! Glad the video was useful :)

[@abdullahkhasawneh328]

my g, my fokin bruda, now i understand this :)

[@shreekarimaruvada]

thank you for this!! im so much clearer on this topic:-)

[@ChemistryGuru]

Thanks Shreekari! Glad you found it useful 😄😄

[@PENGUINS1212]

thank you so much for this!

[@mishaalirfan7483]

thank you soo much sir !

[@loksuriyaa_gamingyt1374]

thank you very much chemistry guru

[@ChemistryGuru]

you are most welcome! glad you found it useful! :)

[@abigailsookdeo]

Thanks so much ! Really helpful

[@Kamen9954]

how about the hess's cycle of calcium hydroxide: ca+O2+H2--->Ca(oh)2, enthalphy change of formation of water is -286kj mol-1

[@roriefriz9068]

Why did you say we want to find the enthalpy change ΔH for SnO2(s) +2CO(g)--> Sn(s)+2CO2(g) and not enthalpy change of formation ΔHf? Could you say theyre the same in this case? Reallz appreciate the feedback you give and the amount of effort you put into your videos they really help!

[@usmanwaj1668]

yep same thing

[@suhaylahasan9985]

I love u sir

[@AJ-sd1fx]

thank you very much !!

[@virealsons8223]

hi, how to determine direction of arrow for (triangle)H

[@ChemistryGuru]

Formation is to form 1 mole of compound from its elements in standard state, so the direction of arrow for reaction will be from elements (reactants) to compound (products)

[@arpita6279]

thankyou so much

[@solehah.a7507]

Do you have explanation for Hess Law energy level diagram?

[@ChemistryGuru]

For energy level diagram you can check out this video regarding Born Haber cycle :) th-cam.com/video/KnnOCYAla18/w-d-xo.html

[@lolaxmed9046]

is this hess law

[@ChemistryGuru]

yes this is application of Hess law. drawing energy cycle and then finding enthalpy change of unknown using Hess Law.

[@AyeshaKhan-il5rs]

Thanks sir. But i have a question? Are you chinese