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GATE BT 2024 | Question: 4

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Which one of the following statements is correct about Reynolds Number $\left(N_{R e}\right)$ in a stirred tank bioreactor?

  1. $N_{R e}$ is independent of the viscosity of the medium
  2. In laminar flow, mixing time increases with an increase in $N_{R e}$
  3. $N_{R e}$ is inversely proportional to the impeller speed
  4. In turbulent flow, mixing time is independent of $N_{R e}$
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