1) (20 points)
In liquid-liquid extraction, the solution which is to be extracted is called the feed (R1) and the liquid with which the feed is contacted is the solvent (E2). The solvent-rich product is called the extract (E1) and the residual liquid from which the solute has been removed is called the raffinate (R2). E and R are the molar flow rates per unit cross-sectional area of the tower. With point 1 the top of the tower and point 2 the bottom of the tower, give the necessary equations to obtain the height of the tower for counter-current extraction for dilute conditions? You can use x mole fraction for the raffinate and y for the extract. The raffinate is the heavy liquid. Draw a picture of the tower.
Ubi caritas est vera, Deus ibi est.
"The mark of your ignorance is the depth of your belief in injustice and tragedy. What the caterpillar calls the end of the world, the Master calls the butterfly." ~ Richard Bach
I'm sorry, everyone. Chat's malfunctions today are a sign directed at me-- I think the god of the internet realm is trying to tell me that my science exam tomorrow isn't going to study for itself.
>_>
I actually hope it stays like this all night. Removes at least one temptation.
"Let's eat, Grandma!" as opposed to "Let's eat Grandma!": punctuation saves lives.
