A. Wetted wall column
B. Gilliland’s
C. Winkelmann’s
D. Wike’s
Related Mcqs:
- Laboratory determination of the diffusivity of vapor is done by ______________ method?
A. Wetted wall column
B. Gilliland’s
C. Winkelmann’s
D. Wike’s - The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = _________________?
A. 1
B. 0.5
C. 10
D. 0 - The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of________________?
A. Newtonian liquids
B. Non-Newtonian liquids
C. Ideal gases
D. Real gases - If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is____________________
A. 0
B. 1
C. 1 - Experimental determination of ________________ is done by wetted wall column method?
A. Diffusion co-efficient
B. Mass transfer co-efficient
C. NTU
D. None of these - Experimental determination of _______________ is done by wetted wall column method?
A. Diffusion co-efficient
B. Mass transfer co-efficient
C. NTU
D. None of these - The assumption made in Elis method in distillation is that enthalpy concentration lines of vapor and liquid are __________________?
A. Parallel
B. Straight
C. Both parallel and straight
D. Neither parallel nor straight - In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________________ its relative saturation?
A. Lower than
B. Higher than
C. Equal to
D. Either A. or B., depends on the mixture composition - Mass transfer co-efficient (K) and diffusivity D. are related according to film theory as______________________?
A. K ∝ D
B. K ∝√D
C. K ∝ D1.5
D. K ∝ D2 - The Knudsen diffusivity is dependent on the ______________________?
A. Molecular velocity only
B. Pore radius of the catalyst only
C. Molecular mean free path only
D. Molecular velocity and pore radius of the catalyst
