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Consider a single "cell" model. The cell contains a liquid with known initial concentration of a pollutant. The cell is flushed at a constant flow rate with a liquid with zero concentration of the pollutant. CinQ C cell V The cell is completely back-mixed, so any mass entering is uniformily distributed within the cell. The volume of the cell is V, the discharge entering and leaving is Q Determine: 1. An expression for the mass of pollutant in the cell at any time. 2. A difference expression for the change in mass in the cell over a discrete time interval (At). 3. The mass flow of pollutant into the cell (yes, I know its zero, but play along). 4. The mass flow of pollutant leaving the cell. 5. Combine 2,3, and 4 into a single balance expression (i.e. = ... ). ΔΕ At Ccell

Consider a single "cell" model. The cell contains a liquid with known initial concentration of a pollutant. The cell is flushed at a constant flow rate with a liquid with zero concentration of the pollutant. CinQ C cell V The cell is completely back-mixed, so any mass entering is uniformily distributed within the cell. The volume of the cell is V, the discharge entering and leaving is Q Determine: 1. An expression for the mass of pollutant in the cell at any time. 2. A difference expression for the change in mass in the cell over a discrete time interval (At). 3. The mass flow of pollutant into the cell (yes, I know its zero, but play along). 4. The mass flow of pollutant leaving the cell. 5. Combine 2,3, and 4 into a single balance expression (i.e. = ... ). ΔΕ At Ccell

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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Consider a single "cell" model. The cell contains a liquid with known initial concentration of a pollutant. The cell is flushed at a constant flow rate with a liquid with zero concentration of the pollutant. CinQ Determine: Ccell V The cell is completely back-mixed, so any mass entering is uniformily distributed within the cell. The volume of the cell is V, the discharge entering and leaving is Q 1. An expression for the mass of pollutant in the cell at any time. 2. A difference expression for the change in mass in the cell over a discrete time interval (At). 3. The mass flow of pollutant into the cell (yes, I know its zero, but play along). 4. The mass flow of pollutant leaving the cell. 5. Combine 2,3, and 4 into a single balance expression (i.e. ΔΕ At Ccell = ... ).
Transcribed Image Text:Consider a single "cell" model. The cell contains a liquid with known initial concentration of a pollutant. The cell is flushed at a constant flow rate with a liquid with zero concentration of the pollutant. CinQ Determine: Ccell V The cell is completely back-mixed, so any mass entering is uniformily distributed within the cell. The volume of the cell is V, the discharge entering and leaving is Q 1. An expression for the mass of pollutant in the cell at any time. 2. A difference expression for the change in mass in the cell over a discrete time interval (At). 3. The mass flow of pollutant into the cell (yes, I know its zero, but play along). 4. The mass flow of pollutant leaving the cell. 5. Combine 2,3, and 4 into a single balance expression (i.e. ΔΕ At Ccell = ... ).
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