Laboratory determination of the diffusivity of vapor is done by ______

1.	Laboratory determination of the diffusivity of vapor is done by __________ method.
A.	wetted wall column
B.	Gilliland's
C.	Winkel mann's
D.	Wike's
Answer» D. Wike's

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Laboratory determination of the diffusivity of vapor is done by __________ method.

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