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Question

A fermentation broth of density 1000 kg m^-3 and viscosity 10^-3 kg m-1 s^-1 is mixed in a 100 L fermenter using a 0.1 m diameter impeller, rotating at a speed of 2 s^-1. The impeller Reynolds number is ____________.

Explanation

Calculation based on standard bioprocess principles yields 20000 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

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