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: McGraw-Hill Education
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![8.6 Styrene was added to a solution of sodium naphthal ene in tetrahydrofuran at 25°C so that the initial
concentrations of styrene and sodium naphthalene in the reaction mixture were 0.2 mol/L and 0.001
mol/L, respectively. Five seconds after the addition of styrene its concentration was determined to be
1.73x10-3 mol/L. Calculate (a) overall propagation rate constant; (b) initial rate of polymerization;
(c) rate of polymerization after 10 s; and (d) number average molecular weight of the polymer after 10
S.
[Ans. (a) kp = 950 L mo!- s; (b) (Rp), = 0.190 mol L-s; (c) (Rp)10s = 1.422x10-5 mol L-
s-1; (d) (Mw)10s
%3D
%3D
20800]](https://content.bartleby.com/qna-images/question/11cc29b8-1369-4127-a87d-e1ff262f3a17/8fd293c7-643f-44f4-8668-ed54bdba5b1b/bjhp7ln_processed.jpeg)
Transcribed Image Text:8.6 Styrene was added to a solution of sodium naphthal ene in tetrahydrofuran at 25°C so that the initial
concentrations of styrene and sodium naphthalene in the reaction mixture were 0.2 mol/L and 0.001
mol/L, respectively. Five seconds after the addition of styrene its concentration was determined to be
1.73x10-3 mol/L. Calculate (a) overall propagation rate constant; (b) initial rate of polymerization;
(c) rate of polymerization after 10 s; and (d) number average molecular weight of the polymer after 10
S.
[Ans. (a) kp = 950 L mo!- s; (b) (Rp), = 0.190 mol L-s; (c) (Rp)10s = 1.422x10-5 mol L-
s-1; (d) (Mw)10s
%3D
%3D
20800]
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