I found this course way too late... It is so useful to understand also the classical thermodynamics and get the feeling rather than an empty notion of all these S, H, F, G... Thank you for doing an excellent pedagogical job!
By the way, where would be the best place to start investigating the partition functions for liquids, particularly in light of activity coefficients in concentrated solutions?
@@ChemProfCramer I am graduating in chemistry next year and it is good to have examples like this. Not only you made it easy to understand but also the fact that you spend time doing it to teach other. Thank you for that
The greatest puzzle in helmholtz free energy is this: If the volume is constant, how to extract work? No explanation I have seen up till this point is clear on this point.. The only explanation I could construct was to form the ensemble from two parts, one expanding against the other, while keeping the total volume costant...
To borrow a quote from: chemistry.stackexchange.com/questions/91255/what-is-non-pv-work-how-is-it-related-to-gibbs-energy PV work is only the work done during the change in volume. There can be different types of works that a system can do during a process, for instance: electrical work, work against gravity, work against friction, magnetic work, shaft work, etc. This is the concept of non expansion or non PV work. (And I'll add that the "etc." can include chemical work, transport work, and add my own etc.) So, don't let the elementary coursework's focus on ideal gases confuse you -- ideal gases are nice because we can put things in contact with them at equilibrium and use our near-analytical understanding of the ideal gas to understand the more complicated system in contact as well, but the more complicated systems can do many, many more kinds of work than can the ideal gas.
Thank you for sharing, it is so clear!
Finally, someone explained this clearly! Thank you!
you're very welcome
I found this course way too late... It is so useful to understand also the classical thermodynamics and get the feeling rather than an empty notion of all these S, H, F, G... Thank you for doing an excellent pedagogical job!
By the way, where would be the best place to start investigating the partition functions for liquids, particularly in light of activity coefficients in concentrated solutions?
so glad to get your perspective, and pleased to have been helpful!
Illuminating explanation. Than you so much!
Always a pleasure to learn people find the videos useful, thanks!
Grate tutorial to thermodynamics!
Very glad to know you found it useful -- thanks for the feedback!
Professor Cramer is the 🐐
😁👊
Best Professor ever
aw... 😊
@@ChemProfCramer I am graduating in chemistry next year and it is good to have examples like this. Not only you made it easy to understand but also the fact that you spend time doing it to teach other. Thank you for that
The greatest puzzle in helmholtz free energy is this: If the volume is constant, how to extract work? No explanation I have seen up till this point is clear on this point..
The only explanation I could construct was to form the ensemble from two parts, one expanding against the other, while keeping the total volume costant...
To borrow a quote from: chemistry.stackexchange.com/questions/91255/what-is-non-pv-work-how-is-it-related-to-gibbs-energy
PV work is only the work done during the change in volume. There can be different types of works that a system can do during a process, for instance: electrical work, work against gravity, work against friction, magnetic work, shaft work, etc. This is the concept of non expansion or non PV work. (And I'll add that the "etc." can include chemical work, transport work, and add my own etc.) So, don't let the elementary coursework's focus on ideal gases confuse you -- ideal gases are nice because we can put things in contact with them at equilibrium and use our near-analytical understanding of the ideal gas to understand the more complicated system in contact as well, but the more complicated systems can do many, many more kinds of work than can the ideal gas.
I think the following:
dU = dW + dQ
dU
Sir, can you give an example for constant temperature and volume process?