Raoults Law Overview 1

This overview of Raoult's law includes a graphical explanation.

Category:

Science & Technology

Tags:

• Raoults
• Law
• Overview
• 1

[qrais]

is it wrong to call ptot a vector?

[EnderlePhD]

@qrais I don't think that will work because it isn't directional.

[qrais]

@EnderlePhD Interesting. P = X*P(not), the pressure excreted by the solvent on the solution is equal to the mole fraction of the solvent multiplied by the vapour pressure of the pure solvent...I thought pressure had a direction...am I wrong? Because what we are doing is multiplying a variable between 0 and 1 to a vector?

[EnderlePhD]

@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.

[varunyadav2002]

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?

[EnderlePhD]

@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.

[eternal000sunshine]

thankyou sir , very well done , tip top

[qrais]

@EnderlePhD ahh! probably me being stupid. Thank you for great video and your help. I appreciate it. Thank you.

[shivavaishu5]

THANX A LOT SIR , IT REALLY HELPED ME A LOT . & U should not give any wrong comments on a teacher .

[slickdick6969]

@kilstas16 fuck u hes got a phd and has done more with his life then youll ever do....so do us all a favor and walk urself off of a bridge.

[EnderlePhD]

@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.

[26redstars]

we use y1P = x1P1(sat)

is it the same thing??

Can you put up a lecture on modified raoults law??

Thanks Prof :)

From South Africa

[bikashad]

@kilstas16 bust off dumbass this is not yr chatroom or pornsite. we want to learn. have a life and quit school dumbass.

[Blaise6407]

@Kilsta 16

So what? The man is teaching science and your comment is just WRONG...

[kilstas16]

GAY gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay gay

i thing he is a gay guy

[whichwaywest]

thanks a bunch - I saw this graph in my AP chem class and had no idea what was going on until you explained it

[srav68]

im in a distance learning program and your videos have been very helpful. thank you for taking the time to upload the videos, Professor

[jazzoff]

Thanks for the webcast, it has been very useful.

[dioxinac]

Immensely helpful, thank you Professor.

Working on a presentation for an O-Chem Distillation lab and this has provided invaluable information.