85. Solving a chemistry problem

85. Solving a chemistry problem

515. The table below shows the results of measurements of the viscosity of mixtures of cream with skimmed (skimmed) milk and distilled water as a function of fat concentration at 64 ° C

s, weight % 20.0 16.0 12.0 8.0 4.0 0
р*, g/cm3 0.970 0.975 0.979 0.983 0.988 0.993
η, cP 0.986 0.857 0.697 0.612 0.532 0.476
*p is the density of the emulsion; cream fat density 0.8887 g/cm3)

Build on these data a graph of the dependence of the reduced viscosity on the volume fraction of fat and determine the intrinsic viscosity [(η- η0 / η0f) pref → 0]. Is it equal to the theoretical coefficient of Einstein´s equation for suspensions?

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