2. Consider a cylindrical glass capillary of length 30cm, open on each side, filled with an aqueous 10mMAlCl solution at room temperature. The glass has a zeta potential of 75mV. Electrodes are placed at each end of the capillary and an electrical field of 10V/m is being applicd. a. What is the electro-osmotic velocity of the fluid? b. Suppose in the center of the tube 2 types of spherical colloidal particles are iniected simultancously: particles with a radius of 3nm and particles of a radius of 200nm, both having a zeta potential of +45mV. Which type of particle will be eluded first? c. How would the particles move if the capillary was closed