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Mass Transfer

Mass Transfer
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be

≤ 1
1
> 1
< 1

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Mass Transfer
In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction,

Exponentially
Inversely
None of these
Linearly

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Mass Transfer
Prandtl number for water at 20°C is about

70
7
150
0.7

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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

Kinematic viscosity
Volumetric diffusivity
Mass transfer co-efficient
Thermal diffusivity

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Mass Transfer
Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes?

Plate towers
Spray towers
Packed towers
Wetted wall columns

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Mass Transfer
When the mixture to be distilled has a very high boiling point and the product material is heat sensitive, the separation technique to be used is __________ distillation.

None of these
Continuous
Steam
Azerotropic

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