1. Polymerization reactions are complicated somewhat because they involve very large numbers of molecules. But we can demonstrate the general features of the thermodynamics of polymerization by considering a much smaller model system. Instead of considering the formation of polyethylene, for example, we can begin with the following reaction in which two ethylene molecules combine with hydrogen to form butane: 2 C2H4) + H2( - GH10) Use the table below to calculate ASº. Compound U mol" K) Compound (J mol K') 130.6 CO:(g) 213.6 205.0 C,H„(g) 310.03 I1,0() 69.91 CIL() 186.2 188.7 CIL® 219.5 NH) 1923 C,H,N(O 178.91
1. Polymerization reactions are complicated somewhat because they involve very large numbers of molecules. But we can demonstrate the general features of the thermodynamics of polymerization by considering a much smaller model system. Instead of considering the formation of polyethylene, for example, we can begin with the following reaction in which two ethylene molecules combine with hydrogen to form butane: 2 C2H4) + H2( - GH10) Use the table below to calculate ASº. Compound U mol" K) Compound (J mol K') 130.6 CO:(g) 213.6 205.0 C,H„(g) 310.03 I1,0() 69.91 CIL() 186.2 188.7 CIL® 219.5 NH) 1923 C,H,N(O 178.91
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter10: Fuels, Organic Chemicals, And Polymers
Section: Chapter Questions
Problem 61QRT
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Transcribed Image Text:1. Polymerization reactions are complicated somewhat because they involve very large numbers
of molecules. But we can demonstrate the general features of the thermodynamics of
polymerization by considering a much smaller model system. Instead of considering the
formation of polyethylene, for example, we can begin with the following reaction in which two
ethylene molecules combine with hydrogen to form butane:
2 C2H4 + H2g → GH10)
Use the table below to calculate ASº.
Compound
(J mol" K')
Compound
U mol" K')
130.6
CO:(g)
213.6
O:(g)
205.0
C,H(g)
310.03
II,O()
CI L(g)
69.91
186.2
I1,0(g)
188.7
CIL(E)
219.5
NH(g)
1923
C,H,N(O
178.91
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