A liquid mixture containing 35.0 mole% acetone and 65.0 mole% water is to be partially vaporized in a process vessel called an evaporator to produce a vapor and a líquid stream. The vapor and liquid streams exiting the evaporator are at equilibrium with each other and the evaporator operates ăt steady state. The liquid mixture is fed into the evaporator at a rate of 10.0 kmol/hr. Water and acetone are miscible liquids and they can be modeled using Raoult's Law. The vapor pressures of water and acetone can be estimated using the following relationships (where P, is in mmHg and T is °C): 1210.595 Acetone: logP, = 7.11714 T+229.664 1668.21 Water: logP, = 7.96681 T+228 a) The evaporator operates at 0.574 atm. How would you determine the minimum operating temperature to ensure that two phases form in the separator? Set up the equation you would use to solve this problem. Include all known values in your proposed equation. You do not need to solve the equation to determine the minimum temperature.
A liquid mixture containing 35.0 mole% acetone and 65.0 mole% water is to be partially vaporized in a process vessel called an evaporator to produce a vapor and a líquid stream. The vapor and liquid streams exiting the evaporator are at equilibrium with each other and the evaporator operates ăt steady state. The liquid mixture is fed into the evaporator at a rate of 10.0 kmol/hr. Water and acetone are miscible liquids and they can be modeled using Raoult's Law. The vapor pressures of water and acetone can be estimated using the following relationships (where P, is in mmHg and T is °C): 1210.595 Acetone: logP, = 7.11714 T+229.664 1668.21 Water: logP, = 7.96681 T+228 a) The evaporator operates at 0.574 atm. How would you determine the minimum operating temperature to ensure that two phases form in the separator? Set up the equation you would use to solve this problem. Include all known values in your proposed equation. You do not need to solve the equation to determine the minimum temperature.
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:A liquid mixture containing 35.0 mole% acetone and 65.0 mole% water is to be
partially vaporized in a process vessel called an evaporator to produce a vapor
and a liquid stream.
The vapor and liquid streams exiting the evaporator are at equilibrium with each
other and the evaporator operates ăt steady state.
The liquid mixture is fed into the evaporator at a rate of 10.0 kmol/hr.
Water and acetone are miscible liquids and they can be modeled using Raoult's
Law.
The vapor pressures of water and acetone can be estimated using the following
relationships (where P, is in mmHg and T is °C):
Acetone:
1210.595
logP, = 7.11714 –
T+229.664
1668.21
Water: logP, = 7.96681
T+228
a) The evaporator operates at 0.574 atm. How would you determine the
minimum operating temperature to ensure that two phases form in the
separator? Set up the equation you would use to solve this problem. Include all
known values in your proposed equation. You do not need to solve the equation
to determine the minimum temperature.
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