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Mass Transfer

Mass Transfer
H₂S present in naphtha reformed gas is removed by absorbing with

Ethanolamine
HCl
K₂CO₃
Vacuum gas oil

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Mass Transfer
__________ equation applies to diffusivities in liquids.

None of these
Gilliland
Hirschfelder
Wilke and Chang

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

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

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Mass Transfer
Plate efficiency in a distillation column is reduced due to the __________ of liquid.

Entrainment
Weeping & dumping
All of these
Foaming

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Mass Transfer
On addition of solute in the solvent, the __________ of the solution decreases.

Vapour pressure
Freezing point
Both B and C
Boiling point

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

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

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