21. Solving a chemistry problem

21. Solving a chemistry problem

4. When coagulating the sol with an electrolyte, data on changes in the partial concentration n were obtained, given in Table 6.6. Calculate the constants k and Q of the Smoluchowski kinetic equation and the distribution curves of 1st, 2nd and 3rd order particles. Calculate the theoretical value of the coagulation rate constant and check the applicability of Smoluchowski´s theory to the coagulation of the studied sols. Coagulation was studied at a temperature of 298 K. The viscosity of the dispersion medium is 1*10-3 Pa*s.
Change in the number of particles n*10-14, m3, during coagulation

t,s 0 30 90 150 270 2.90 480 600
n, 4.35 3.48 2.56 1.98 1.40 1.08 0.94 0.78

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