Question: A 5-mm-diameter capillary tube is used as a viscometer for oils. When the flow rate is 0.071 m3/h the measured pressure drop per unit length,

A 5-mm-diameter capillary tube is used as a viscometer for oils. When the flow rate is 0.071 m3/h the measured pressure drop per unit length, is 375 kPa/m. Estimate the viscosity of the fluid. Is the flow laminar? Can you also estimate the density of the fluid?

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