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Mass Transfer

Mass Transfer
Paper industry employs __________ driers.

Rotary
Cylinder
Spray
Fluidised bed

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Mass Transfer
Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time)

(4De/πt)1/2
(4De/t)
(De.t)1/2
(De/t)1/2

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Mass Transfer
Cox chart is useful in the design of

Crystalliser
Dryer
Distillation column
Evaporator

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Mass Transfer
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in

Decreased solute solubility
All of these
Large minimum liquid to gas (L/G) ratio
Large number of trays

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Mass Transfer
During bottling of cold drinks (e.g. Pepsi), the main resistance to mass transfer for the absorption of carbon dioxide in water lies in the

None of these
Liquid-gas interface
Liquid film
Gas film

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Mass Transfer
Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.

Degree of turbulence
Chemical properties
Interfacial area
Physical properties

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MORE MCQ ON Mass Transfer

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