1.

Microcarrier beads 120 μm 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 × 10-6 m2s-1
B. 1.29 × 10-6 m2s-1
C. 1.50 × 10-6 m2s-1
D. 1.49 × 10-6 m2s-1
Answer» C.


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