This was released like 10 years ago and still helped me more than anything. Thank You .
@Arjun-yh3bf
4 жыл бұрын
Wow! Spent hrs reading the explanation for it everywhere on the web, but he just cleared all my doubts regarding Raoult's Law in 3:05 !!!
@AnglicLove
11 жыл бұрын
I cant believe it's this simple... Thank you so much!!
@zerotoherochemistry7250
3 жыл бұрын
Very clear from beginning to end! Superb!!
@njxad
6 жыл бұрын
Really helps me a lot!!!! Thank you so much!! Great explanation!
@screenflicker1
7 жыл бұрын
Dr. Edler, Thanks for putting this vid online. Helps me understand the concept better. Reminds me of Dalton's law of partial pressure for gases. I wonder if you could tell me how this relates to miscibility of solvents? If I mix water and oil, is it the polar to polar kind and knowing that they won't mix, how will this type of solvent mixture behave in terms of roults law? Thanks in advance.
@Huda-dq9tm
9 жыл бұрын
It was really helpful.......Thanks a lot
@EnderlePhD
13 жыл бұрын
@varunyadav2002 You can check my chapter playlist for solutions. In short, it's the pressure exerted by the vaporized liquid. In air, it would be a partial pressure because the gases that compose air would be present as well. The vapor pressure can be tabulated or calculated numerous ways depending on the given information in the problem.
@EnderlePhD
13 жыл бұрын
@qrais Pressure will have a direction with regards to the direction of the force applied. I don't think this figure shows direction, but if I'm happy to be corrected if someone knows otherwise.
@ckuokuo
11 жыл бұрын
Great explaination. Thank you
@EnderlePhD
13 жыл бұрын
@26redstars I believe the equation you are using is the combination of Raoult's (Pi = xiPpure) and Dalton's (Pi = yiPtot) Law. Setting the partial pressures equal to each other results in your equation. I solve some problems that are combination of both laws though I don't write out the equation as you do. Check out playlist 13 on my channel for those kinds of problems (named Raoult's law in the playlist). I hope that helps.
@varunyadav2002
13 жыл бұрын
do you ever give an explanation of what actual vapor pressure is or what is the pressure that is exerted by vapor when it is resting over solution?
@moazfikry3156
2 жыл бұрын
so helpful thanks for video
@nikhiljaiswal2331
8 жыл бұрын
+EnderlePhD Good job. That was a phenomenal explanation for a seemingly difficult concept. Much impressed. I was wondering why positive deviance occurs though. Doesn't the addition of any solute to a solvent decrease the vapor pressure according to Colligative pressure--Vapor Pressure lowering. Therefore, wouldn't it be impossible to have a positive deviation because whenever you add something to a pure solvent, the bp will increase compared to the pure regardless of what solute it is. Again, I'm just curious as I'm studying for the MCAT :) But otherwise, man, wow! Good job. Made it easy.
@EnderlePhD
8 жыл бұрын
+Nikhil Jaiswal Positive deviation occurs with mixtures of polar and nonpolar molecules. For example, hexane and ethanol results in positive deviation. The vapor pressure is higher than expected because they are "repulsed" by each other. I'm not sure what concept you are thinking about. If you are thinking of Colligative properties, then the addition of a solute results in a mp depression and bp elevation. That doesn't directly apply here. This concept is describing what would happen for any given solute in solution with respect to temperature, but positive/negative deviation is distinguishing the effects of specific types of compounds (or "solutes") on pressure. If you are thinking about intermolecular forces, then a decreased force results in a decreased bp, decreased surface tension, decreased viscosity, and increased vp. In these problems, one is typically considering a particular compound, but not a mixture of compounds as in Raoult's. Because its not a mixture, positive/negative deviation doesn't directly apply. I hope all that makes sense. Best of luck on the MCAT!
@loveyourinnersoulnivi2813
5 жыл бұрын
U explaining very nicely sir very useful thanks
@tenton2000k
4 жыл бұрын
I fcking love you. if you're in chem 372 for Dr. Sun at UH Manoa, give this a thumbs up. -Mark
@susmithaharidasan1470
5 жыл бұрын
Awesome explanation sir
@sayedurrahman7167
6 жыл бұрын
Wow superb explanation
@sairamiranda3310
5 жыл бұрын
Beautiful explanation
@iamDBK
6 жыл бұрын
simple explanation.....thank u sir
@EnderlePhD
13 жыл бұрын
@qrais I don't think that will work because it isn't directional.
@joshiifruit5554
Жыл бұрын
thank you so much
@Nick2014B
2 жыл бұрын
How do you know if the Kb>Pb* in non ideal
@KJ-xf4oh
6 жыл бұрын
Sir r we adding up the co ordinate of Pa and Pb to get P total cure ??? ....
@zaidachmed868
7 жыл бұрын
Mole fraction is intial or at equilibrium?
@f-akramvlogs3663
4 жыл бұрын
Khatarnak English 🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🤯🥵🥵🥵🥵🥵😱😱😱
@giteshmurade5252
5 жыл бұрын
What state does the intersection point of two lines which are starting from 1 and 0 indicate ? Can anyone answer ?
@rishavkumar8213
7 жыл бұрын
well explained..
@deepthireddyvasi2075
10 жыл бұрын
much obliged sir.
@niteshsoni2282
7 жыл бұрын
very nice sirrrr
@user-fx3dj1tg1h
7 жыл бұрын
thank you
@MsJingxi
9 жыл бұрын
extremely helpful!
@ajayrajput9849
6 жыл бұрын
Sir y in graph both points r not equal
@sahayammary8586
4 жыл бұрын
Wow. Thank you.
@lawrencechung1138
9 жыл бұрын
Thanks so much !!
@deepakbisht6524
8 жыл бұрын
hey, doesn't non polars and polars have dipole dipole interactions?
@EnderlePhD
8 жыл бұрын
+Allen Stewart It depends on the specific molecules. Generally, a nonpolar molecule would not have a permanent dipole. It would only have a dispersion force. Thus, a dipole-dipole interaction is not feasible. However, there is an intermolecular force that could occur: dipole-induced dipole. This force is generally very weak (on the order of 2-10 kJ/mol) but can depend on the actual molecules.
@socialanthro
12 жыл бұрын
THANK YOU!!!!
@abdo72173
7 жыл бұрын
thnx u r awesome
@1084neeraj
12 жыл бұрын
thank you..good one
@hara5769
2 жыл бұрын
that helped 😊
@fsujci
12 жыл бұрын
thank you :D
@oliviacook7164
9 жыл бұрын
thankyou!!
@arshisheik9980
6 жыл бұрын
Thank u sir☺☺
@ilxamraqimov6287
7 жыл бұрын
I think your writings are about Bubble point calculations because you neglected "y" in formula
@EnderlePhD
7 жыл бұрын
These calculations are for introductory level chemistry students.
@sandeepprasad8020
6 жыл бұрын
Thnkssss
@Blaise6407
13 жыл бұрын
@Kilsta 16 So what? The man is teaching science and your comment is just WRONG...
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