Microcarrier beads 120 m in diameter are used to culture recombinant CHO cells for production of growth hormone. It is proposed to use a 6-cm turbine impeller to mix the culture in a 3.5-1itre stirred tank. Air and carbon dioxide are supplied by flow through the reactor headspace. The microcarrier suspension has a density of approximately 1010 kg m-3 and a viscosity of 1.3 x 10-3 Pa s. Estimate the kinematic viscosity.

Microcarrier beads 120 m in diameter are used to culture recombinant

1.	Microcarrier beads 120 m in diameter are used to culture recombinant CHO cells for production of growth hormone. It is proposed to use a 6-cm turbine impeller to mix the culture in a 3.5-1itre stirred tank. Air and carbon dioxide are supplied by flow through the reactor headspace. The microcarrier suspension has a density of approximately 1010 kg m-3 and a viscosity of 1.3 x 10-3 Pa s. Estimate the kinematic viscosity.
A.	1.30 10<sup>-6</sup> m<sup>2</sup>s<sup>-1</sup>
B.	1.29 10<sup>-6</sup> m<sup>2</sup>s<sup>-1</sup>
C.	1.50 10<sup>-6</sup> m<sup>2</sup>s<sup>-1</sup>
D.	1.49 10<sup>-6</sup> m<sup>2</sup>s<sup>-1</sup>
Answer» C. 1.50 10<sup>-6</sup> m<sup>2</sup>s<sup>-1</sup>