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Polymer 1. Consider a polymeric sphere that has a drug encapsulated in it. The drug is contained between 0

Polymer 1. Consider a polymeric sphere that has a drug encapsulated in it. The drug is contained between 0

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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1. Consider a polymeric sphere that has a drug encapsulated in it. The drug is contained between 0<r<R1, while the polymer is from Ri<r<R2. The drug diffuses out of the sphere and into the environment, and you would like to model this process. Using the appropriate expression from BSL Table B.11, develop an expression for the molar flow rate (WDrug, mol/s) of the drug out of the polymer sphere. Assume this is a steady state process, and that the concentration of the drug at r=R1 is known at CA,1. The concentration of the drug at r=R2 is not known, however, you know a mass transfer coefficient, kc, and can assume that Carug, = 0. Cone Polymer R Drug Drug rekase
Transcribed Image Text:1. Consider a polymeric sphere that has a drug encapsulated in it. The drug is contained between 0<r<R1, while the polymer is from Ri<r<R2. The drug diffuses out of the sphere and into the environment, and you would like to model this process. Using the appropriate expression from BSL Table B.11, develop an expression for the molar flow rate (WDrug, mol/s) of the drug out of the polymer sphere. Assume this is a steady state process, and that the concentration of the drug at r=R1 is known at CA,1. The concentration of the drug at r=R2 is not known, however, you know a mass transfer coefficient, kc, and can assume that Carug, = 0. Cone Polymer R Drug Drug rekase
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