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Ethylbenzene
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Past exam of the quantum condensed matter course of the University of Cambridge
/
2007
/
Section A
/
A3
/
b
/
i
/
Solution
2026-10-20
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In
ethylbenzene
, the
good solvent
makes effective segment repulsions swell the coil. With the
Flory approximation
,
R
∼
0.67
nm
×
100
0
3/5
≃
42
nm
.
(1)
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:
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