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An unknown polymer sample was found to have the following molecular weight distribution: Molecular weight range 8,000 - 20,000 20,000 - 32,000 32,000 - 44,000 44,000 - 56,000 56,000 - 68,000 68,000 - 80,000 80,000 - 92,000 If the weight average DP for this sample is found to be DP=536, which of the following common polymers is this unknown sample? Xi 0.05 0.15 0.21 0.28 0.18 0.10 0.03 Wi 0.02 0.08 0.17 0.29 0.23 0.16 0.05 a. Polystyrene with a monomer molecular weight of 104.15 g/mol O b. Polypropylene with a monomer molecular weight of 42.08 g/mol O c. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/mol O d. Polyvinyl chloride with a monomer molecular weight of 62.498 g/mol e. Polycarbonate with a monomer molecular weight of 61.0168 g/mol

An unknown polymer sample was found to have the following molecular weight distribution: Molecular weight range 8,000 - 20,000 20,000 - 32,000 32,000 - 44,000 44,000 - 56,000 56,000 - 68,000 68,000 - 80,000 80,000 - 92,000 If the weight average DP for this sample is found to be DP=536, which of the following common polymers is this unknown sample? Xi 0.05 0.15 0.21 0.28 0.18 0.10 0.03 Wi 0.02 0.08 0.17 0.29 0.23 0.16 0.05 a. Polystyrene with a monomer molecular weight of 104.15 g/mol O b. Polypropylene with a monomer molecular weight of 42.08 g/mol O c. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/mol O d. Polyvinyl chloride with a monomer molecular weight of 62.498 g/mol e. Polycarbonate with a monomer molecular weight of 61.0168 g/mol

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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An unknown polymer sample was found to have the following molecular weight distribution: Molecular weight range 8,000 - 20,000 Xi 0.05 0.15 0.21 20,000 - 32,000 32,000 - 44,000 44,000 - 56,000 56,000 - 68,000 68,000 - 80,000 80,000 - 92,000 If the weight average DP for this sample is found to be DP=536, which of the following common polymers is this unknown sample? 0.28 0.18 0.10 Wi 0.03 0.02 0.08 0.17 0.29 0.23 0.16 0.05 O a. Polystyrene with a monomer molecular weight of 104.15 g/mol O b. Polypropylene with a monomer molecular weight of 42.08 g/mol O c. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/mol O d. Polyvinyl chloride with a monomer molecular weight of 62.498 g/mol e. Polycarbonate with a monomer molecular weight of 61.0168 g/mol
Transcribed Image Text:An unknown polymer sample was found to have the following molecular weight distribution: Molecular weight range 8,000 - 20,000 Xi 0.05 0.15 0.21 20,000 - 32,000 32,000 - 44,000 44,000 - 56,000 56,000 - 68,000 68,000 - 80,000 80,000 - 92,000 If the weight average DP for this sample is found to be DP=536, which of the following common polymers is this unknown sample? 0.28 0.18 0.10 Wi 0.03 0.02 0.08 0.17 0.29 0.23 0.16 0.05 O a. Polystyrene with a monomer molecular weight of 104.15 g/mol O b. Polypropylene with a monomer molecular weight of 42.08 g/mol O c. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/mol O d. Polyvinyl chloride with a monomer molecular weight of 62.498 g/mol e. Polycarbonate with a monomer molecular weight of 61.0168 g/mol
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