Raoult's Law Vapor Liquid Equilibrium Solved with Excel

[@teelit7655]

Hi. Can we use excel to come up xy diagram for a non ideal system? Thanks

[@apm]

I wouldn't recommend Excel for an xy diagram because you need to implicitly solve the VLE equations at many points. Here is an example in Python (much better tool for this): apmonitor.com/me575/index.php/Main/VLEWilson

[@juliasim1691]

Excellent explanation. I just found a typo.... The pdf file says Antione Equation. Great video.

[@apm]

+Simulation & Control, yes it is the Antione equation for vapor pressure. Raoult's law for VLE uses the Antione equation to calculate Psat.

[@sjoe_87]

Antoine equation

[@dianaantillon1984]

Could you guess y1 and y2 as well if not given? (Only given pressure)

[@apm]

It isn't needed with Excel. However, if you use a different solution approach then the y1 and y2 may need guesses.

[@alphabeta9032]

Hi Sir, can you make a video on how to estimate the vapor quality (q) of pure solvents if Temperature and pressure are given. I am curious tro know how chemcad/HYSYS does this calculation. Thank you.

[@devaniese]

hi, how to find x1 y1? if only given pressure and temperature? Thanks

[@apm]

You can solve this as a set of 2 equations and 2 unknown variables. See apmonitor.com/che263 for more information on solving equations.

[@のへの-y5t]

can I know the name of the reference please

[@apm]

You can cite the APMonitor website, if needed. Related problems are based on similar exercises as Elementary principles of chemical processes, Book by Richard Felder

[@のへの-y5t]

@@apm thank you