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Mass Transfer

Mass Transfer
Selectivity of the solvent used in solvent extraction should be

> 1
1
< 1

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Mass Transfer
Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their

Density
Relative volatility
Viscosity
Solubility

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Mass Transfer
Which of the following assumes constant molal vaporisation and overflow?

McCabe-Thiele method
Ponchan-Savarit method
Plate absorption column
Enthalpy concentration method

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Mass Transfer
Schimdt number and Lewis number for pure air at atmospheric conditions are respectively

1 and 0
>1 and ≈ 1
< 1 and ≈ 1
0 and ≈ 1

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Mass Transfer
Which of the following is not a batch drier?

Truck drier
Agitated pan drier
Fluidised bed drier
Vacuum shelf drier

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Mass Transfer
As per Gilliland's equation, the diffusivity is

All of these
Inversely proportional to 'P'
Dependent on the molecular volume & molecular weight of components
Directly proportional to 'T1.5'

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