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Mass Transfer

Mass Transfer
Liquid diffusivity is of the order of __________ cm² /second.

> 1
0.1
10-5 to 10-6
0.01

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Mass Transfer
The relative volatility of a binary mixture at constant temperature __________ the total pressure.

None of these
Increases with increase in
Is independent of
Decreases with increase in

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Mass Transfer
At what percentage (by volume) of alcohol composition, it forms an azeotrope with water?

90
91.5
99
95

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Mass Transfer
If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is

Always < 1
G/L
None of these
L/G

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Mass Transfer
Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the

Volumetric diffusivity
Thermal diffusivity
Mass transfer co-efficient
Kinematic viscosity

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Mass Transfer
Sticky material can be dried in a __________ dryer.

None of these
Fluidised bed
Rotary
Tray

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