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Mass Transfer

Mass Transfer
Leaching of coarse solid lumps is also termed as

Decoction
Agitation and settling
Dissolution
Percolation

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Mass Transfer
Back-trapping in a distillation column

Increases tray efficiency
Reduces pressure drop
Is desirable, as it provides improved vapour-liquid contact
Decreases tray efficiency

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Mass Transfer
(NSh/NRe.NSc) is termed in mass transfer operation as the

Peclet number
Momentum diffusivity
Stanton number
Thermal diffusivity

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Mass Transfer
Large scale drying of sugar is done in a __________ dryer.

Truck
Rotary
Tray
Spouted bed

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Mass Transfer
Humidification involves mass transfer between a pure liquid phase and a fixed gas, which is

At a fixed temperature
Insoluble in the liquid
Soluble in the liquid
Non-ideal in nature

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Mass Transfer
Which of the following employs an accessory known as 'drift eliminator' ?

Rotating disc contactor
Mechanical draft cooling tower
Multiple effect evaporator
Rotary dryer

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