Consider a stable suspension of particles of diameter 100nm suspended in water. a. Describe qualitatively how the viscosity of the suspension will vary with concentration. b. For a concentrated suspension with packing density 30%, describe how will the viscosity vary with shear rate. Will the shear rate dependence of the viscosity be different if the particle sizes were 10m instead of the 100nm. Justify your answer. Consider both the suspensions to be stable