(b) In a paint manufacturing process involving flow of a suspension of titanium dioxide particles, it is proposed to increase the particle volume fraction from 5% to 9%. Using an appropriate formula,...

Extracted text: (b) In a paint manufacturing process involving flow of a suspension of titanium dioxide particles, it is proposed to increase the particle volume fraction from 5% to 9%. Using an appropriate formula, calculate the percentage change in the viscosity of the suspension that would be expected. Explain your methods, reasoning and any assumptions.