5.3 Hess's Law and Enthalpy of Formation | General Chemistry
Chad provides a comprehensive lesson on two methods of calculating the Enthalpy of a reaction from thermodynamic data: Hess's Law and Enthalpy of Formation data. Three Hess's Law examples are worked out completely from start to finish. Then an example of calculating Delta H from Enthalpies of Formation is performed as well. Finally, the lesson is concluded by defining what a Formation Reaction is, and how using them is really just a special application of Hess's Law.
I've embedded this playlist as a course on my website with all the lessons organized by chapter in a collapsible menu and much of the content from the study guide included on the page. Check this lesson out at www.chadsprep.com/chads-gener...
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00:00 Lesson Introduction
00:50 Introduction to Hess's Law
03:13 Hess's Law Example #1
12:53 Hess's Law Example #2
19:17 Hess's Law Example #3
24:44 Enthalpy of Formation
29:35 What is a Formation Reaction?
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Пікірлер: 47
You explain it so much easier and more concisely than my own professor, thank you!!!
@ChadsPrep
2 жыл бұрын
Glad the channel is helping you, Nathan!
@ShaliniSingh-vj1lh
11 ай бұрын
In which grade this topic is
@minjugatto6950
2 ай бұрын
@@ShaliniSingh-vj1lh this topic comes up on the last two years of high school, depending on your school's curriculum, in General Chemistry.
Dear professor you are indeed a great teacher .God bless u with a lot of success.😊
@ChadsPrep
4 ай бұрын
Thank you very much. All the best to you.
Whenever I feel hopeless on a chapter, I turn to chad's prep. Esp helpful since I got no lectures in my class
@ChadsPrep
4 ай бұрын
Glad the channel helps - Happy Studying!
u r the best ... from Algeria
@ChadsPrep
3 ай бұрын
Thank you from USA - Happy Studying!
Super high quality videos!
@ChadsPrep
2 жыл бұрын
Thanks for saying so!
You're a real Chad, Mr. Chad.
@ChadsPrep
7 ай бұрын
Haha, thanks!
Keep making videos 🔥🔥🔥
@ChadsPrep
2 жыл бұрын
Will do!
You’re an excellent teacher ✨.
@ChadsPrep
Жыл бұрын
Thank you.
Thank you so much u have really helped me
@ChadsPrep
Жыл бұрын
You're welcome - glad to hear it!
Love your video and your videos system ❤️
@ChadsPrep
2 жыл бұрын
Excellent!
You are goated Kind sir 🙏🏾🔥
@ChadsPrep
2 ай бұрын
Thanks!
thanks you so much!!!!!
@ChadsPrep
4 ай бұрын
Very welcome.
I love you so much😭😭😭😭❤️❤️❤️❤️❤️
@ChadsPrep
11 ай бұрын
Glad the channel is helping you - Happy Studying!
A little confused, how do you know when to use hess's law or enthalpy of formation?
I have my AP Chemistry Midterm exam tommorow. Wish me luck :)
@ChadsPrep
8 ай бұрын
All the best!
Where can thermodynamic data be found? Will it be provided in every problem?
@ChadsPrep
8 ай бұрын
you wouldn't be expected to memorize it so yes it will be provided unless you have a very mean Professor!
Sir you said enthalpy of formation forms 1 mol of a single product but as for NO in your last calculation example, it formed a double product of N2O + NO2. Why did you still call it an enthalpy of formation reaction.
@carluy7351
9 ай бұрын
based on how i understand it, he showed in the last example how enthalpy of formation can simplify calculating the enthalpy changes of a reaction. We can simply take sum of the enthalpies of formation of each product and reactant, which are experimentally determined, and then subtract the values of products and reactants to find the delta H of the entire reaction. hope that makes sense (I'm only studying for the mcat, so my knowledge is not in-depth)
I am not attending Chemistry lecture on this again
THEY CALL HIM CHAD FOR A REASON
@ChadsPrep
3 ай бұрын
😁😁😁
Chad: if you get enthalpy of formation kiss your professor Me who’s homeschooled😢
Sir your teaching outstanding but please speak slower a bit.Meaning to say you are fast.
@ChadsPrep
Ай бұрын
I get that a lot - best solution is you can adjust the playback speed in the settings. Happy Studying!
27:58 instructions unclear now i'm in jail
@ChadsPrep
7 ай бұрын
what are you struggling with?
@Shaneliffin
6 ай бұрын
He kissed his professor
@ChadsPrep
6 ай бұрын
haha... **disclaimer** Chad's Prep does not condone non-consensual physical contact with Professors...
Haha ha "bagel piehole. Bagel piehole" 😂 good video. Very informative)
@ChadsPrep
9 ай бұрын
Excellent!