Solving VLE Using Raoult's Law and Iterative Method Solver

Shows how a computer solver is useful in solving for unknown temperature of a binary VLE system using Raoult's law and Antoine's equation. Made by faculty at the University of Colorado Boulder Department of Chemical and Biological Engineering.

[JustinDurtschi]

I wish this guy did all of the videos.

[m_a_s]

Not all Antoine data yield mmHg units. For example data from NIST Web Book yield bar. Just be careful and check your units and type of logarithms.

[huntermeatte]

is there a way to solve a "what if analysis" on a graphing calculator?

[a.g]

Hey, I have a question :)
What if we have 3 species and we were given T, total P at equilibrium. How to find y and x for the three species? What info should i guess?

[tanmaysanghvi]

i think in the antoine equation, the equationn uses ln and not log....please check it.

[ainaaiza]

Sir what to do if our substance don't exist in antoine constant?

[keithrunyon]

Worth noting that there must be some additional floating point value that were truncated by excel during this demonstration. If the exact values are placed into the current excel goal seek you get a different solution (ie at 48C, [xbenz, xtolu]~[0.388105199, 0.621076154]. Of course this was filmed many years ago, so it is also possible that the solver used by excel is different.

[juliannadamm]

I can't get over how much this guy sounds like David Spade haha. Great video though!

[harikeshavraman]

Omg I'm viewing this video after 6 years and getting astonished after seeing that we can do more with Excel🙄, I'm still out of date