Answers 289
- C (inner part of double layer) = 0.106 F m~^2
6/eo (inner part of double layer) = 4.8 (suggesting orientation of
water molecules close to the surface) - (a) ME = 1-5 x 10~^8 m^2 s"^1 V"^1
(6) 3.3 per cent
(c) 19.2 mV (using Smoluchowski equation; KU ** 260)
(</) 0.014 Cm"^2 - g — 51 mV (using Smoluchowski equation; KO «* 140; therefore,
calculated £ is probably an underestimate) - 5 x 10~^5 cm^3 s"^1 towards — ve electrode
- H/nm 0.5 2 5 10 20
V/1<T^21 J -73 +62 +12 -10 -8 - k 2 = 4.8 x 10"^12 cm^3 s"^1
= 6.2 x 10~^12 cm^3 s'^1
35: Mr = 118000
MT (light-scattering, mass-average) > Mr (viscosity) > Mr
(osmotic pressure, number-average)
- [17] = 1.6 x 10~^5 M°Tm m^3 kg'^1
Average polymer configuration intermediate between extended
and random