2. Consider the P-x-y diagram at 300 K for A-B mixtures at right. (a) What are the vapor pressures of A and B at 300 K? (b) A 25 mol-% A vapor mixture is isother- mally compressed from 1.5 to 2.0 bar. Does a 2-phase mixture form, and if so, what is the mole fraction of A in each resulting phase? (c) Using data at the azeotrope, compute the van Laar parameters a and 3 for A-B mix- tures at this temperature. P (bar) 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 XA or YA
2. Consider the P-x-y diagram at 300 K for A-B mixtures at right. (a) What are the vapor pressures of A and B at 300 K? (b) A 25 mol-% A vapor mixture is isother- mally compressed from 1.5 to 2.0 bar. Does a 2-phase mixture form, and if so, what is the mole fraction of A in each resulting phase? (c) Using data at the azeotrope, compute the van Laar parameters a and 3 for A-B mix- tures at this temperature. P (bar) 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 XA or YA
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
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Transcribed Image Text:2. Consider the P-x-y diagram at 300 K for A-B mixtures at right.
(a) What are the vapor pressures of A and B at
300 K?
(b) A 25 mol-% A vapor mixture is isother-
mally compressed from 1.5 to 2.0 bar. Does
a 2-phase mixture form, and if so, what
is the mole fraction of A in each resulting
phase?
(c) Using data at the azeotrope, compute the
van Laar parameters a and 3 for A-B mix-
tures at this temperature.
P (bar)
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
XA or YA
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