Yes! If you multiply Boltzmann's constant by Avogadro's number (to get a value per mole), you'll see that it's actually the exact same number as the gas constant. There's more detail here: ua-cam.com/video/sI6I3JZ4tP4/v-deo.html
@@PhysicalChemistry Sir you mean to say that the expression Delta(S mix)= -k(XA lnXA+XBlnXB) is entropy of mixing per molecule and if we replace k(boltzman's constant) with Gas constant(R) it represents molar entropy of mixing. Am I correct on this Sir?
Good question. I **did** multiply by (n_A + n_B). But I just used that to convert the molar (intensive) Gibbs energy (ΔḠ with a line on top) to the extensive Gibbs energy (ΔG without a line on top). ΔG = (n_A + n_B) ΔḠ In case you want more info on molar properties or intensive / extensive properties, see here: ua-cam.com/video/u7VOe4_bmQU/v-deo.html
I am disappointed that I didn't find a channel before I did. thanks for the tutorial. I have a
chemical thermodynamics exam tomorrow !!
Glad you found it eventually, and hopefully you did well on your exam.
Great review for my P-chem test this week! Very helpful video
Glad it helped. Good luck on your test!
3:05..Sir can we directly replace the Boltzman's constant with the Gas constant?
Yes!
If you multiply Boltzmann's constant by Avogadro's number (to get a value per mole), you'll see that it's actually the exact same number as the gas constant.
There's more detail here: ua-cam.com/video/sI6I3JZ4tP4/v-deo.html
@@PhysicalChemistry Sir you mean to say that the expression Delta(S mix)= -k(XA lnXA+XBlnXB) is entropy of mixing per molecule and if we replace k(boltzman's constant) with Gas constant(R) it represents molar entropy of mixing. Am I correct on this Sir?
@@ishaan9017 Yes, that's exactly right
@@PhysicalChemistry Thanks so much Sir
4:24 why didn't you write the total number of moles (na+nb) on the left side of the equation (delta-Gmix) when multiplying?
Good question. I **did** multiply by (n_A + n_B). But I just used that to convert the molar (intensive) Gibbs energy (ΔḠ with a line on top) to the extensive Gibbs energy (ΔG without a line on top).
ΔG = (n_A + n_B) ΔḠ
In case you want more info on molar properties or intensive / extensive properties, see here: ua-cam.com/video/u7VOe4_bmQU/v-deo.html
This is so well explained! Thank you sir
You're quite welcome. I'm glad you liked it
what beautiful you say Pchem.thanks alot prof.stuart
Welcome!
super helpful omg ty so much!
You're very welcome