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Mass Transfer

Mass Transfer
Molarity is defined as the number of gm moles of solute per __________ of solvent.

Gm
Litre
Kg
c

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Mass Transfer
Low viscosity absorbent is preferred for reasons of

Low pressure drop on pumping
Improved flooding characteristics
Rapid absorption rates and good heat transfer characteristics
All of these

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Mass Transfer
Steady state equimolal counter diffusion is encountered in

Absorption of NH₃ from air by water
All of these
Separation of a binary mixture by distillation
All liquid-liquid diffusion systems

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Mass Transfer
Perforated plate towers are unique for solvent extraction because, they provide

None of these
Higher contact area
Repeated coalescence & redispersion of the drop phase
Better contact of the phase

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Mass Transfer
For the same process conditions, the reflux ratio of an unlagged distillation column

Decreases in winter
None of these
Increases in winter
Increases in summer

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Mass Transfer
Rayleigh's equation applies to __________ distillation.

Flash
Differential
Continuous
Steam

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