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Mass Transfer

Mass Transfer
__________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.

Bubble
Packed
Spray
Tray

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Mass Transfer
Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer.

None of these
Freeze
Spray
Indirect tray

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Mass Transfer
Which of the following is used for the concentration of rubber latex?

Short tube evaporator
Calendria
Long tube vertical evaporator
Agitated film evaporator

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Mass Transfer
The binary diffusivity in gases does not depend upon the

None of the listed here
Nature of the components
Pressure
Temperature

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Mass Transfer
If f = moles of vapour present per mole of feed, then the slope of feed line is

- f/(1 - f)
- 1/f
- (f - 1)/f
(1 - f)/f

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

Dynamic viscosity
Surface tension
Kinematic viscosity
Pressure

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