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Mass Transfer

Mass Transfer
Leaching of coarse solid lumps is also termed as

Agitation and settling
Dissolution
Decoction
Percolation

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Mass Transfer
Which of the following solutions will follow Raoult's law most closely?

35% solution of NH₃ in water
A solution of benzene, toluene and oxylene
35% solution of camphor in water
A solution of polar organic compounds (not of homologs of a series)

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Mass Transfer
Dimension of mass diffusivity is the same as that of

Surface tension
Pressure
Dynamic viscosity
Kinematic viscosity

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Mass Transfer
The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient)

KL/DA²
√(KL².DA)
KL²/DA
KL².DA

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Mass Transfer
Rose oil is extracted from rose leaves using __________ distillation.

High pressure
Extractive
Steam
Low pressure

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Mass Transfer
Large scale usage of flash distillation is practised in

Polymerisation industry
Petroleum refinning
Ammonia synthesis plant
Soap manufacturing

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