15. Thermodynamics: Bond and Reaction Enthalpies

MIT 5.111 Principles of Chemical Science, Fall 2014
Instructor: Catherine Drennan

Thermodynamics is key to understanding the reactivity of molecules and compounds. In this first of three lectures on thermodynamics, viewers are introduced to ∆H, and asked to consider how much heat it will take to break one type of molecular bond versus another. Viewers are also asked whether a particular chemical reaction will release heat or absorb heat.

License: Creative Commons BY-NC-SA

[amybarrera]

She's an amazing professor. Her lectures remind me how fun, interesting and important chemistry is!

[sinajafarzadeh]

anyone else bing watching this amazing prof? I started to love thermodynamics too!

[niranjanbeing]

Love From india...read after lot of books and videoes finally figerout thermodynamics feel...😊..amazing teaching style ...

[veeramallasrinivas]

Beautiful way of teaching.i am a big fan of this educator.hats off...

[maroofanabi]

One of the best lectures I have ever heard on thermodynamics...
Amazing 👍

[iengineer.]

After all, I feel more comfortable learning more about Thermodynamics. Thank you for your lecture. Thank you for the Hess's law the way of explanation of mountain.

[shubhamsharma]

you are amazing, your passion for thermodynamics, we as learner can feel it

[codingWorld]

Thanks MIT, very Nice lecture room and lecture

[endingthesilence]

The joy that I feel watching this lecture on a Saturday morning when is proof of the exothermic energy of this professor, haha I am the surroundings and I am receiving the energy she releases

[kiyoponnn]

This is a surprise.I thought a university like MIT would teach material that was gibberish to us mere mortals, but I can actually understand a lot of it

[kaynedu]

Hearing you confort my opinion. I have always believed that French peeps make things more complicated that they are... And your courses are definitely the best way to prove my beliefs are 200% true

[zack_]

The law of nature is so precise. It's easy to see the consequence when it is ignored by some culture.

[mergen]

me camping before watching this lecture: oh beautiful mother nature!
me camping after watching this lecture: Photosynthesis~~~Ahhhh Aaaahhh! Photosynthesis~~~~Ahhhh

[parzival_zd_]

Nice.
😊😃👍👍Anyone would Love to study Like this....
really Nice.😃😃

[bonbonpony]

08:52 Do you know of any more advanced course in which, instead of wacky sound effects, I could hear some more on where those numbers come from and how are they calculated or measured?

[shb]

Does MIT have a course with lectures in Organic chemistry available on ocw?

[jeff]

I paused this video a few times when the lecture hall was present. Nigh a student was looking at the lecturer. All slumped over, distracted, not paying attention, looking at their phones. Super.

[anilsharma-evmy]

Bound
Bond
Bounding
Bood
Boondi
Boonda
Bindings
Bandhu
Bandhua
Bandhya
Bandi
Bandho
Bandhaney
Bandhan
Buddy
Bidhu
Budhi
Bonda
Bondage
Bandar
Bhandara
Bhandhari
Bag
Baggage
Bhai
Bhari
Bharna
Bhara
Bharav
Bharavi
Bharwavo
Bharat
Bhurna
Brahama
Brahami
Bharigu
Bhitar
Bhagwaan
Bhagwat
Bbhargo
Bharawan
Baat

[jacobvandijk]

@ 17:34 More important is that 34% does not seem to understand the explanation so far. By the way, this outcome (33:24) should be in kJ (not kJ/mol), because the dH of all the reactants and products is multiplied by their amount in moles. Uhh, what did she say? 32:57 Not molecules, but moles!

[dj_b]

I mean, for beginners it's quite fine but if you are more familiar with the subject it's kind of not good 😅