2. Calculate the half-coagulation time and coagulation rate constants using the following experimental data on the change in the total number of particles during coagulation of a lyophobic dispersed system in water:
Time, s 0 7.0 15.0 20.2 28.0
VS 10-15 particles/m3 32.2 24.2 19.9 16.7 14.2

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