142. Solving a chemistry problem

8.18. Using experimental data, verify the theory of rapid coagulation of an aqueous suspension of kaolin with an initial concentration of v0 = 8.9 * 10 ^ 14 ppm / m3 at a temperature of 290 K, dispersion viscosity
Wednesday n = 1 * 10–3 Pa * s. Determine the half coagulation time and coagulation constant.
t, s 0 90 150 210 270 330
Ev * 10–14, part / m3 8.9 6.51 5.12 4.40 3.65 3.2