5. Derive the equation 1 given below starting with the Fick's law and state your major assumptions. Write all the intermediate steps to your lab notebook. DAB = 4VX dk d?NMCm dt 103 (Eqn.1) - where (with nominal dimensions), V = Volume of water in outer vessel, L 1.0 x = Length of capillaries, cm 0.45 d = Diameter of capillaries, cm 0.1 N = Number of capillaries 121 M = Molarity of salt solution in diffusion cell, g-mole/L Cm = Change in conductivity per change in molarity (dilute solutions) 2-4.L.mol-1 dk = Rate of change of conductivity with time (slope of the graph) Q-1 sec 1 dt = =