Laboratory determination of the diffusivity of vapor is done by __________________ method?
Correct answer: A. Winkelmann's
- A. Winkelmann's
- B. Gilliland's
- C. Wetted wall column
- D. Wike's
Explanation
Winkelmann's method determines vapor diffusivity experimentally by observing the evaporation or movement of a liquid-vapor boundary in a narrow tube. Gilliland's method is primarily a correlation for estimating gas diffusivity rather than a laboratory measurement method.
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