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Mass Transfer

Mass Transfer
At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes

?
1
None of these

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Mass Transfer
The binary diffusivity in gases at atmospheric conditions is about

10-1 cm²/sec
10-4 cm²/seC₂
10-3 sec/cm
10-9 cm/sec

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Mass Transfer
Which of the following has the same dimension as mass diffusivity?

Momentum flux
Kinematic viscosity
Both Momentum flux & Kinematic viscosity
Thermal diffusivity

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Mass Transfer
Calcium ammonium nitrate (a fertiliser) is dried in a __________ dryer.

Vacuum
Tunnel
Rotary
Tray

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Mass Transfer
Chemisorption compared to physical absorption has

Increased utilisation of stagnant zones of the liquid phase
Lower capacity of the solvent for the solute gas
None of these
Lower adsorption rate

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Mass Transfer
As the reflux ratio decreases, the

Separation becomes more efficient
None of these
Column diameter increases
Number of plates increases

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