12.29. Mixtures of methanol and 1-0ctanol are prepared, and their temperature is raised to a level above the boiling point of methanol but below that of 1-octanol.
12.29. Mixtures of methanol and 1-0ctanol are prepared, and their temperature is raised to a level above the boiling point of methanol but below that of 1-octanol.
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:12.29. Mixtures of methanol and 1-octanol are prepared, and their temperature is
raised to a level above the boiling point of methanol but below that of 1-octanol.
Transcribed Image Text:observed. Table 12.1 gives the mole fraction of methanol in each phase for two
at constant atmospheric pressure. As a result, a two-phase liquid-vapor system is
Problems
243
otant atmospheric pressure. As a result, a two-phase liquid-vapor system is
different temperatures.
6) Using only these data, estimate the enthalpies of vaporization of pure metha-
t
nol and pure 1-octanol in this temperature regime, Ahvap.M and Ahvap.O,
respectively. Express your answer in kJ/mol. Hint: you may want to consider
ideal mixture models.
(b) Estimate the boiling temperatures of pure methanol and pure 1-octanol, TpM
and Tp,o, respectively. Express your answer in K.
Table 12.1 Mole fractions of methanol
Liquid mole fraction
of methanol
Vapor mole fraction
of methanol
T (K)
340.0
0.9990
0.8978
450.0
0.4072
0.0127
12,30
ido 1 and 2 gives a total
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