Boiling Water vs. Vodka

  Рет қаралды 2,269

Process with Pat

2 жыл бұрын

I've been thinking a lot about the claim that when you cook with alcohol the ethanol boils off. Before starting to tackle that question one needs to understand the difference between boiling a pure substance like ethanol or water versus boiling a mixture of the two.
00:00 Intro
01:03 Boiling pure water
01:44 Boiling vodka
02:30 Bubble points
04:48 T-xy diagrams
07:03 Raoult's l aw & ideal mixtures
09:07 Distillation columns
11:33 Summary
Dortmund Data Bank VLE data for water/ethanol:
www.ddbst.com/en/EED/VE/VE0%20Ethanol%3BWater.php
Dortmund Data Bank VLE data for methanol/ethanol:
www.ddbst.com/en/EED/VLE/VLE%20Ethanol%3BMethanol.php
Dortmund Data Bank VLE data for water/methanol:
www.ddbst.com/en/EED/VLE/VLE%20Methanol%3BWater.php
Dortmund Data Bank VLE data for water/acetone:
www.ddbst.com/en/EED/VLE/VLE%20Acetone%3BWater.php
Process with Pat is the place to come for perspective and to ask stupid questions. I want you to leave more knowledgeable, confident, motivated, and most importantly, curious. I also want to invigorate a field that seems tired and uninspiring, at least if you get your perspective from internet forums. These are not lectures. This is a place for you to leave thinking “Oh! That’s why...”
This channel is not only for chemical engineers - anyone who works with processes should be able to find something of value here.
#ProcessEngineering
#ChemicalEngineering
#ProcesswithPat

Пікірлер: 12
@ChemEngWeekly
@ChemEngWeekly 2 жыл бұрын
Really brought the txy diagram and reality vs theory of mixtures to life with this video Pat! 👏 looking forward to the next video 👍 👍
@brendan714
@brendan714 2 жыл бұрын
Great video Pat, keep up the quality work! I recently discovered your channel and I'm hooked. I really enjoyed my separations class in school but haven't ever used the knowledge in my job... always nice to re-learn some things!
@ProcesswithPat
@ProcesswithPat 2 жыл бұрын
Thanks man! To be honest I don't use it much in my day-to-day work either, which is why I've been refreshing it for myself with this question about boiling off ethanol. I actually totally misunderstood something about azeotropes at school that was clarified to me recently, so watch out for what's coming up (when I get to it!)
@brendan714
@brendan714 2 жыл бұрын
@@ProcesswithPat definitely looking forward to the continuation of the series!
@renomont
@renomont 2 жыл бұрын
Excellent presentation. I particularly enjoyed how you approached the McCabe Thiele method and azeotropes.
@ProcesswithPat
@ProcesswithPat 2 жыл бұрын
Hey thanks a lot. Yeah it is typical to do the McCabe Thiele on an x-y plot rather than a T-xy plot, but I thought I could get away with it here without complicating it too much. I have, of course, assumed equilibrium at all stages giving the minimum number of stages, but I didn't think it was critical to go down that rabbit-hole here.
@xse345
@xse345 2 жыл бұрын
Superb explanation of t-x diagram. Good job as always.👍
@Rodddy
@Rodddy 2 жыл бұрын
Amazing video, well explained mate !
@tajammulkha_n6791
@tajammulkha_n6791 2 жыл бұрын
Don't know what kind of coincidence this is! Lately I have been studying Distillation as my semister began. Now this notification danged my screen. Anyways great explanation especially why bubble point increases along the curve.
@ProcesswithPat
@ProcesswithPat 2 жыл бұрын
Nice! Glad we got the timing right. Stick around cos I wanna talk more about azeotropes and about “boiling off the alcohol” in food.
@panoskb9405
@panoskb9405 2 жыл бұрын
You are my favourite! I was looking forward for your next video!
@nicolaskoutsouvelis608
@nicolaskoutsouvelis608 2 жыл бұрын
No doubt this video will help aspiring chemical engineers master this key concept
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