10.20. A sealed, rigid container initially holds equal numbers of moles of pure liquid X and its vapor at temperature T and pressure P. The container is then heated at constant volume to a temperature T2, at which point it still contains liquid and vapor X. Assume that throughout this process the vapor behaves ideally and that the liquid has a constant molar volume v. Moreover, assume that the heat capacities of the liquid and vapor, ch and c, Ahyap are independent of temperature and pressure (a) Find an (b) Find an expression for the fraction f (on a molar basis) that is liquid at the end of the process. Your answer can include P2 from above. (c) Find an expression for the heat required relative to the total number of moles of substance X. Your answer can include P and f from above. as well as the vaporization enthalpy expression for the final pressure P2
10.20. A sealed, rigid container initially holds equal numbers of moles of pure liquid X and its vapor at temperature T and pressure P. The container is then heated at constant volume to a temperature T2, at which point it still contains liquid and vapor X. Assume that throughout this process the vapor behaves ideally and that the liquid has a constant molar volume v. Moreover, assume that the heat capacities of the liquid and vapor, ch and c, Ahyap are independent of temperature and pressure (a) Find an (b) Find an expression for the fraction f (on a molar basis) that is liquid at the end of the process. Your answer can include P2 from above. (c) Find an expression for the heat required relative to the total number of moles of substance X. Your answer can include P and f from above. as well as the vaporization enthalpy expression for the final pressure P2
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:10.20. A sealed, rigid container initially holds equal numbers of moles of pure liquid
X and its vapor at temperature T and pressure P. The container is then heated
at constant volume to a temperature T2, at which point it still contains liquid and
vapor X. Assume that throughout this process the vapor behaves ideally and that
the liquid has a constant molar volume v. Moreover, assume that the heat
capacities of the liquid and vapor, ch and c,
Ahyap are independent of temperature and pressure
(a) Find an
(b) Find an expression for the fraction f (on a molar basis) that is liquid at the
end of the process. Your answer can include P2 from above.
(c) Find an expression for the heat required relative to the total number of moles
of substance X. Your answer can include P and f from above.
as well as the vaporization enthalpy
expression for the final pressure P2
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