Hess's Law Problems & Enthalpy Change - Chemistry

This chemistry video tutorial explains how to solve common hess's law problems. It discusses how to calculate the enthalpy change of a reaction using hess's law.

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First Law of Thermodynamics:

Thermochemistry Equations:

Internal Energy, Heat, and Work:

Thermochemical Equations:

Specific Vs Molar Heat Capacity:

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Basic Calorimetry Problems:

Final Temperature Calorimetry Problems:

Latent Heat of Fusion & Vaporization:

Coffee Cup Calorimeter:

More Calorimeter Problems:

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Specific Heat Capacity Problems:

Hess Law Problems:

More Hess Law Problems:

Enthalpy of Formation & Heat Combustion:

Enthalpy Practice Problems:

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Speed of Light, Frequency, & Wavelength:

Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[superpokemon]

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[spongbob]

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[laurenmast]

holy shit when all the O2's ended up cancelling at the end with all those fractions my mind was blown man

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[selenamonique]

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[everybodys_mr._bad_guy]

i have been studying for an upcoming thermodynamics exam and was very stumped when it came to hess's law. my professor is amazing but i am autistic and sometimes i need things explained to me in a very particular way that many do not have time for(no skipped steps, nothing vague or else i get stuck on how to approach problems rather than solve them) and this video remedied the issue. i am so glad i was recommended this channel. i have an affinity for math and science so i will definitely be sticking around.

[POLEJUMPER]

12:53 for anyone that is confused when he started to cancel out the equations, he was supposed to write NO2 rather than 02 in the final reaction, as you can see he circled it but i think mistakenly wrote 02 instead

[roxy]

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[reyarjune]

I just wanna say thank you for your explanation and worked examples. You explain it so clear and understandable.

[shawns]

in 14 minutes, you gave me a better understanding than 1 week of this in class. thank you

[OrganilocksHairdressing]

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[KKTHXFPV]

🙏appreciate your work, my son in hs is having problems on this so hes been avoiding completing his work, we watched this together, first view thru these examples and stuffs already starting to click, hes working on his equations now

[sophiakopec]

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[puterimalaysia]

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[gulseren]

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[lordsniivy]

my chem professor gave me one example of this in our notes, and explained it so poorly that I just thought maybe I was stupid for not understanding. Learning literally three hours before my exam it's incredibly simple. tsym <3

[georgesadler]

Professor Organic Chemistry Tutor, thank you for a solid analysis of Hess Law and Enthalpy Change in General/Old Fashion Chemistry. I found this video somewhat confusing, however, I will review this material from start to finish. Professor Organic Chemistry Tutor, thanks to the viewers for finding and correcting the error(s) in this video.

[hundred]

Thank you for this! I wasn’t paying enough attention in class (not going to blame it on the teacher) and I have a test tomorrow, now I understand it