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Mass Transfer

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

K₂CO₃
HCl
Ethanolamine
Vacuum gas oil

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Mass Transfer
Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid )

P >>P
P
P = P
P < P

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Mass Transfer
Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.

Molecular
Extractive
Steam
Simple

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Mass Transfer
In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing.

Smaller than
Greater than
Either A, or B ; depends on the type of packing
Equal to

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Mass Transfer
Milk is dried usually in a __________ dryer.

Spray
Tray
Freeze
Rotary

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Mass Transfer
In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number.

Sherwood
Lewis
Grashoff
None of these

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