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Mass Transfer

Mass Transfer
Molarity is defined as the number of gm moles of solute per __________ of solvent.

Litre
Kg
c
Gm

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Mass Transfer
Calculation of mass transfer co-efficient is mostly/normally done using __________ theory.

Penetration
None of the listed here
Film
Surface renewal

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Mass Transfer
Weeping in a distillation column

Increases tray efficiency
Results due to very high gas velocity
Provides large interfacial surface for mass transfer
Results due to very low gas velocity

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Mass Transfer
Under conditions of flooding in packed tower, the gas pressure drop

Decreases rapidly
Remains constant
Is maximum
Increases rapidly

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Mass Transfer
Dimension of mass diffusivity is the same as that of

Kinematic viscosity
Dynamic viscosity
Pressure
Surface tension

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Mass Transfer
Pressure drop through plate tower as compared to that through packed tower, for the same duty will be

Equal
Either A or B; depends on the packing height
More
Less

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