Calculate the electroosmotic velocity of an aqueous solution through a glass capillary 5 cm long with a 0.5 mm internal diameter under a potential difference of 100 V. The zeta potential at the capillary wall is 80 mV

Electroosmotic velocity will be equal to

Explanation:

We have given applied voltage v = 100 volt

Length of capillary L = 5 mm = 0.005 m

Zeta potential of the capillary surface

Dielectric constant of glass is between 5 to 10 here we are taking dielectric constant as

Viscosity of glass is

Electroosmotic velocity is given as

So Electroosmotic velocity will be equal to

answer:

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