Coconut milk was extracted from fresh coconut flesh. The rheological behavior of coconut milk containing 30% fat was studied and found to obey the power law. Table 1 shows the consistency coefficient (k) and flow behavior index (n) values obtained at different temperatures (data taken from Simuang, Chiewchan, & Tansakul, 2004). Table 1: Consistency Coefficient and Flow Behavior Index of Coconut Milk for Different Temperatures Temperature (C) K (Pa.sn) n 25 5.05 x 10-2 0.851 70 4.38 x 10-2 0.739 80 3.80 x 10-2 0.756 90 3.49 x 10-2 0.758 Calculate the Arrhenius parameters for the effect of temperature on the apparent viscosity of the coconut milk sample at a shear rate of 300 s−1 Comment on (i) the significance of the n values (ii) the effect of temperature on the flow behavior of coconut milk.
Coconut milk was extracted from fresh coconut flesh. The rheological behavior of coconut milk containing 30% fat was studied and found to obey the power law. Table 1 shows the consistency coefficient (k) and flow behavior index (n) values obtained at different temperatures (data taken from Simuang, Chiewchan, & Tansakul, 2004).
Table 1: Consistency Coefficient and Flow Behavior Index of Coconut Milk for Different Temperatures
Temperature (C) |
K (Pa.sn) |
n |
25 |
5.05 x 10-2 |
0.851 |
70 |
4.38 x 10-2 |
0.739 |
80 |
3.80 x 10-2 |
0.756 |
90 |
3.49 x 10-2 |
0.758 |
Calculate the Arrhenius parameters for the effect of temperature on the apparent viscosity of the coconut milk sample at a shear rate of 300 s−1
Comment on (i) the significance of the n values
(ii) the effect of temperature on the flow behavior of coconut milk.
- Coconut milk was extracted from fresh coconut flesh. The rheological behavior of coconut milk containing 30% fat was studied and found to obey the power law. Table 1 shows the consistency coefficient (k) and flow behavior index (n) values obtained at different temperatures (data taken from Simuang, Chiewchan, & Tansakul, 2004).
Table 1: Consistency Coefficient and Flow Behavior Index of Coconut Milk for Different Temperatures
Temperature (C) |
K (Pa.sn) |
n |
25 |
5.05 x 10-2 |
0.851 |
70 |
4.38 x 10-2 |
0.739 |
80 |
3.80 x 10-2 |
0.756 |
90 |
3.49 x 10-2 |
0.758 |
Calculate the Arrhenius parameters for the effect of temperature on the apparent viscosity of the coconut milk sample at a shear rate of 300 s−1 Comment on (i) the significance of the n valu(ii) the effect of temperature on the flow behavior of coconut milk.
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