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A gas bubble of radius 1 cm rises at a c...

A gas bubble of radius 1 cm rises at a constant rate of 3 mm/s through a solution of density 4.16 g/cm`""^(3).` Determine the coefficient of viscosity of the solution. Neglect the density of the gas.

Text Solution

Verified by Experts

Given,
r=1 cm, v=-3 mm/s =-0.3 cm/s (Taking downward direction as positive) Terminal velocity is given by) `v=2/9 r^(2)/eta (p-p.)g`
`rArr eta=2/9 r^(2)/v (p-p.) g`
`=(2 xx (1)^(2) xx (0-2.15) xx 980)/(9 xx (-0.3))`
=1560.74 poise
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