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For aerated mixing vessels in an aqueous solution, the mass transfer coefficient (kL) co-relating power consumption (Pm) and fermenter volume (V) can be expressed as

kL ∝ (Pm/V)0.33
kL ∝ (Pm/V)0.66
kL ∝ (Pm/V)0.50
kL ∝ (Pm/V)

Correct Answer: kL ∝ (Pm/V)0.33

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