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12. A liquid mixture contains 60.0 wt% ethanol (E), 5.0 wt% of a dissolved solute (S), and the balance water (W). A stream of this mixture is fed to a continuous distillation column operating at steady-state. Product streams emerge at the top and bottom of the column. The column design calls for the product streams to have equal mass flow rates and for the top stream to contain 90.0 wt% ethanol and no S. (Hint: In order to solve this problem, you will need to assume a basis for calculation (100 kg/hr), draw and fully label a process flow or block diagram, and check to make sure that it can be solved for all unknown stream flows and composition). What is the flowrate of the bottom stream (in kg/hr)? A. 10-25 kg/hr B. 26-50 kg/hr C. 51-75 kg/hr D. 76-100 kg/hr E. 100 – 125 kg/hr

12. A liquid mixture contains 60.0 wt% ethanol (E), 5.0 wt% of a dissolved solute (S), and the balance water (W). A stream of this mixture is fed to a continuous distillation column operating at steady-state. Product streams emerge at the top and bottom of the column. The column design calls for the product streams to have equal mass flow rates and for the top stream to contain 90.0 wt% ethanol and no S. (Hint: In order to solve this problem, you will need to assume a basis for calculation (100 kg/hr), draw and fully label a process flow or block diagram, and check to make sure that it can be solved for all unknown stream flows and composition). What is the flowrate of the bottom stream (in kg/hr)? A. 10-25 kg/hr B. 26-50 kg/hr C. 51-75 kg/hr D. 76-100 kg/hr E. 100 – 125 kg/hr

Introduction to Chemical Engineering Thermodynamics
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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12. A liquid mixture contains 60.0 wt% ethanol (E), 5.0 wt% of a dissolved solute (S), and the balance water (W). A stream of this mixture is fed to a continuous distillation column operating at steady-state. Product streams emerge at the top and bottom of the column. The column design calls for the product streams to have equal mass flow rates and for the top stream to contain 90.0 wt% ethanol and no S. (Hint: In order to solve this problem, you will need to assume a basis for calculation (100 kg/hr), draw and fully label a process flow or block diagram, and check to make sure that it can be solved for all unknown stream flows and composition). What is the flowrate of the bottom stream (in kg/hr)? A. 10-25 kg/hr B. 26-50 kg/hr C. 51-75 kg/hr D. 76-100 kg/hr E. 100 – 125 kg/hr
Transcribed Image Text:12. A liquid mixture contains 60.0 wt% ethanol (E), 5.0 wt% of a dissolved solute (S), and the balance water (W). A stream of this mixture is fed to a continuous distillation column operating at steady-state. Product streams emerge at the top and bottom of the column. The column design calls for the product streams to have equal mass flow rates and for the top stream to contain 90.0 wt% ethanol and no S. (Hint: In order to solve this problem, you will need to assume a basis for calculation (100 kg/hr), draw and fully label a process flow or block diagram, and check to make sure that it can be solved for all unknown stream flows and composition). What is the flowrate of the bottom stream (in kg/hr)? A. 10-25 kg/hr B. 26-50 kg/hr C. 51-75 kg/hr D. 76-100 kg/hr E. 100 – 125 kg/hr
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