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Molecular weight data for some polymer are tabulated here. Compute (a) the number-average molecular weight, (b) if it is known that this material's the repeat unit molecular weight m= 100.11 g/mol, what is this material's degree of polymerisation? Molecular Weight Range (g/mol) 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 W₁ 0.02 0.08 0.17 0.29 0.23 0.16 0.05 X₁ 0.05 0.15 0.21 0.28 0.18 0.10 0.03

Molecular weight data for some polymer are tabulated here. Compute (a) the number-average molecular weight, (b) if it is known that this material's the repeat unit molecular weight m= 100.11 g/mol, what is this material's degree of polymerisation? Molecular Weight Range (g/mol) 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 W₁ 0.02 0.08 0.17 0.29 0.23 0.16 0.05 X₁ 0.05 0.15 0.21 0.28 0.18 0.10 0.03

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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Molecular weight data for some polymer are tabulated here. Compute (a) the number-average molecular weight, (b) if it is known that this material's the repeat unit molecular weight m= 100.11 g/mol, what is this material's degree of polymerisation? Molecular Weight Range (g/mol) 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 W₁ 0.02 0.08 0.17 0.29 0.23 0.16 0.05 X₁ 0.05 0.15 0.21 0.28 0.18 0.10 0.03
Transcribed Image Text:Molecular weight data for some polymer are tabulated here. Compute (a) the number-average molecular weight, (b) if it is known that this material's the repeat unit molecular weight m= 100.11 g/mol, what is this material's degree of polymerisation? Molecular Weight Range (g/mol) 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 W₁ 0.02 0.08 0.17 0.29 0.23 0.16 0.05 X₁ 0.05 0.15 0.21 0.28 0.18 0.10 0.03
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