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Mass Transfer

Mass Transfer
Schmidt number is given by

Re/Pe
Re.Pe
Μ/ρDAB
Sh x Pe

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Mass Transfer
For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same.

Both A & B
Unsaturated surface
Constant rate
Neither A nor B

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Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Sieve plate
Pulse
Bubble cap
Packed

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Mass Transfer
Which of the following is an undesirable characteristic for the solvent used in gas absorption?

None of these
High gas solubility
Low vapor pressure
Low viscosity

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Mass Transfer
Mass transfer co-efficient 'K' according to penetration theory varies with mass dif-fusivity as

D1.5
1/D
D0.5
D

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Mass Transfer
The dimension of diffusivity is same as that of the

Density
Kinematic viscosity
Velocity head
Molal concentration

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