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  3. this problem deals with the shear stressshear rate data below...

Question: this problem deals with the shear stressshear rate data below...

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This problem deals with the shear stress-shear rate data below from a 6 wt% sodium cellulose sulfate polymer solution in water at 24.5°C: (a) Make a plot of viscosity vs. shear rate. Label all axes, including units. (b) Identify a shear rate range, if any, over which the fluid displays Newtonian behavior. (c) Identify a shear rate range, if any, over which the fluid displays power law behavior. If so, determine the power law constants (K and n). (d) If this polymer solution is to be used in a process at a shear rate of 5,000 s–1 , estimate its viscosity under these conditions. Do you think the estimated value is reliable? Briefly explain why or why not.

4. This problem deals with the shear stress-shear rate data below from a 6 wt% sodium cellulose sulfate polymer solution in water at 24.5°C: a) Make a plot of viscosity vs. shear rate. Label all axes, including units. (b) Identify a shear rate range, if any, over which the fluid displays Newtonian behavior (c) Identify a shear rate range, if any, over which the fluid displays power law behavior. If so, determine the power law constants (K and n) (d) If this polymer solution is to be used in a process at a shear rate of 5,000 s-, estimate its viscosity under these conditions. Do you think the estimated value is reliable? Briefly explain why or why not. Shear Rate Shear Stress 0.23 0.29 0.36 0.46 0.58 0.72 0.91 1.15 1.45 5.5 8.5 17.5 20.5 24 27.5 31.5 36 2.3 2.9 3.6 4.6 5.8 7.2 46 52 57 63 69 74 80 85 92 100 108 113 120 130 11.5 14.5 23 36 46 58 72

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