a.) Three liquids containing furfural, water, and ethylene glycol were mixed in a container. Determine how many phases the system has if the three liquids have these compositions: Liquid mA (g) mB (g) mc (g) furfural 20 22 102 water 16 20 33 ethylene glycol 21 18 48 b.) If the mixture in (LETTER a) has only one phase, how many grams of furfural must be added to obtain a two-phase system. If it has two phases, determine the compositions of the extract and raffinate phases.
a.) Three liquids containing furfural, water, and ethylene glycol were mixed in a container. Determine how many phases the system has if the three liquids have these compositions: Liquid mA (g) mB (g) mc (g) furfural 20 22 102 water 16 20 33 ethylene glycol 21 18 48 b.) If the mixture in (LETTER a) has only one phase, how many grams of furfural must be added to obtain a two-phase system. If it has two phases, determine the compositions of the extract and raffinate phases.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
Related questions
Question
a.)
Three liquids containing furfural, water, and ethylene
glycol were mixed in a container. Determine how many phases the system has if the three liquids have these compositions:
| Liquid | mA (g) | mB (g) | mc (g) |
| furfural | 20 | 22 | 102 |
| water | 16 | 20 | 33 |
| ethylene glycol |
21 | 18 | 48 |
b.) If the mixture in (LETTER a) has only one phase, how many grams of furfural must be added to obtain a two-phase system. If it has two phases, determine the compositions of the extract and raffinate phases.
Transcribed Image Text:Ethylene Glycol
(B)
0.9
0.1
0.8
0.2
0.7
0.3
0.6
0.4
boundary
Plait
Point
Miscibility
0.5
0.5
0.4
0.6
0.3
Tie line
0.7
0.2
0.8
0.1
0.9
Furfural
(C)
D 0.9
0.6
0.8
0.7
0.5
0.3
Water
0.4
0.2
0.1 G
(A)
Mass fraction furfural
The ternary diagram above shows the liquid-liquid phase equilibrium for water (A) -
ethylene glycol (2) – furfural (C) system at 25 °C and 1 atm. The solute is ethylene
glycol, and furfural is the solvent that removes ethylene glycol from a binary mixture
with water. The furfural-rich phase is called the extract while the water-rich phase is
called the raffinate.
Mass fraction water
Raffinate
P.
Mass fraction ethylene glycol
Extract
E,
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