1. The following table lists molecular weight data for polystyrene. Compute (a) the number-average molecular weight, (b) the weight-average molecular weight, and (c) the degree of polymerization. Molecular Weight Range (g/mol) 15 000 20 000 30,000-45,000 45,000-60,000 60,000-75,000 75,000-90,000 90,000-105,000 105 000 130 000 120,000-135,000 X1 004 0.07 0.16 0.26 0.24 0.12 7.55 0.03 Wy 001 0.04 0.11 0.24 0.27 0.16 0.12 0.05

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
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1. The following table lists molecular weight data for polystyrene. Compute (a) the number-average
molecular weight, (b) the weight-average molecular weight, and (c) the degree of polymerization.
Molecular Weight Range (g/mol)
15,000-30,000
30,000-45,000
45,000-60,000
60,000-75,000
75,000-90,000
90,000-105,000
105,000 120,000
120,000-135,000
X1
004
0.07
Q.16
0.26
0.24
0.12
0.00
0.03
Wi
001
0.04
0.11
0.24
0.27
0.16
0.05
Transcribed Image Text:1. The following table lists molecular weight data for polystyrene. Compute (a) the number-average molecular weight, (b) the weight-average molecular weight, and (c) the degree of polymerization. Molecular Weight Range (g/mol) 15,000-30,000 30,000-45,000 45,000-60,000 60,000-75,000 75,000-90,000 90,000-105,000 105,000 120,000 120,000-135,000 X1 004 0.07 Q.16 0.26 0.24 0.12 0.00 0.03 Wi 001 0.04 0.11 0.24 0.27 0.16 0.05
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