The Clausius Inequality | Physical Chemistry I | 042

Physical Chemistry lecture that introduces the Clausius Inequality. This equation gives us a lower bound for the entropy for any general irreversible process.

[@kuoian6604]

Your explanation is reallllly good! really help me to understand the concept! Thank you sooooo much!

[@ProfessorDerricotte]

Hey Kuo, glad the video was helpful!

[@ayushverma4693]

beautifully explained ! lots of love from India

[@UnAnsweredSolution]

Carrying me through pchem

[@deamonofshiva]

Very nicely explained with a velvet voice.

[@AlejandraGarcia-hc2me]

Beautiful job

[@fazilmk2268]

U r brilliant

[@kleinrotinininahazwe3907]

Hello professor i would like to point about the dw reversible if it is generated by the system it turns out that the sign will be positive not negative as mentioned in the video.That is what i think thank you

[@ProfessorDerricotte]

Hey Klein, this is an unfortunate quirk of thermodynamics in different fields. From my experience, the physical sciences tends to view work done by the system as a negative quantity (the system does work so it loses energy), however engineering fields tend to view work done by the system as a positive quantity (the system exerts a force so it is doing something, a positive quantity.) It all depends on your frame of reference. In fact! You can find the first law of thermodynamics written in two equivalent (and equally correct) ways dU = dQ + dW (AND) dU=dQ - dW. While it may seem like a contradiction, both are correct as long as your signs are consistent. Hope that helps, as I said originally it is admittedly an odd quirk of thermodynamics in different fields.

[@kaykay8087]

Good explanation!! Btw how is it that the entropy of an irreversible process equal to that of the entropy of reversible process?

[@emmangu1411]

because entropy is a state function

[@LOLmisscrazy]

Thank you so much for sharing!

[@ProfessorDerricotte]

Thank YOU so much for supporting.

[@user-hp1yx1up4i]

Could u tell me the programme which you used to typing ?

[@ProfessorDerricotte]

Hey, the program is called iXplain, right now I think it is currently only available on Windows.

[@fazilmk2268]

Its just people don't know you