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Agitation and Aeration
Reynolds (Rei) number for the impeller is given by (where Di, stirrer diameter; N, stirrer speed, ρ, density of fluid and μ, viscosity of fluid)
DiVρ/μ
Di2Nρ/μ
Di2Vρ/μ
DiNρ /μ
Correct Answer:
Di2Nρ/μ
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