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Mass Transfer

Mass Transfer
Tea percolation employs

Leaching
None of these
Liquid-liquid extraction
Absorption

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Mass Transfer
Molecular seives are regenerated by heating to __________ °C.

< 150
200-330
> 500
> 1000

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Mass Transfer
Which of the following provides maximum contact surface for a liquid-vapour system?

Bubble-cap plate column
Wetted wall column
Seive-plate column
Packed tower

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Mass Transfer
In liquid-liquid extraction, the number of phases at plait point is

2
4
1
3

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Stefan
Toor and Marchello
Danckwerts
Fick

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Mass Transfer
The Schmidt number which is defined as, μ/ρ D, is the ratio of the

Thermal diffusivity to the mass diffusivity
None of these
Momentum diffusivity to the mass dif-fusivity
Momentum diffusivity to the thermal diffusivity

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