What is the unit of absolute viscosity?

What is the unit of absolute viscosity?

Right Answer is:

Centipoise

SOLUTION

Viscosity: The property that represents the internal resistance of a fluid to motion (i.e. fluidity) is called viscosity. There are two ways to write viscosities:

(1) Dynamic viscosity: This is also termed as absolute viscosity. A common unit of dynamic viscosity is poise.

1 poise = 0.1 Pa.s = 0.1 N.s/m2

(2) Kinematic Viscosity: The ratio of dynamic viscosity to density appears frequently and this ratio is given by the name kinematic viscosity. Its unit is Stoke or m2/s (1 stoke = 0.0001 m2 /s).

∴ C.G.S unit of kinematic viscosity is cm2/s.

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