Solution
= Solution
In <ethylbenzene>, the <good solvent> makes effective segment repulsions swell the coil. With the <Flory approximation>,
$$
\boxed{R\sim0.67\,\mathrm{nm}\times1000^{3/5}\simeq42\,\mathrm{nm}.}
$$
= Solution
In <ethylbenzene>, the <good solvent> makes effective segment repulsions swell the coil. With the <Flory approximation>,
$$
\boxed{R\sim0.67\,\mathrm{nm}\times1000^{3/5}\simeq42\,\mathrm{nm}.}
$$