146. Solving a chemistry problem

6 In studying the kinetics of coagulation of gold sol with chloro-
the following experimental data were obtained:

Coagulation time τ, s 0 120 240 420 600 900
Total number of particles in 1 m3, n⋅10-14 2.69 2.25 2.02 1.69 1.47 1.36

The viscosity of the medium is η = 1⋅10-3 Pa⋅; The Boltzmann constant k = 1.38⋅10-23 J / K; T = 293 K. Calculate the average Smoluchowski constant K and compare it with the calculated one using the formula.