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Mass Transfer

Mass Transfer
Paper industry employs __________ driers.

Rotary
Cylinder
Fluidised bed
Spray

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Mass Transfer
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)

Remains unaffected
Decreases
Increases
Increases Linearly

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Mass Transfer
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in

Large number of trays
Large minimum liquid to gas (L/G) ratio
Decreased solute solubility
All of these

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Mass Transfer
Wet bulb and dry bulb temperatures becomes identical at __________ percent saturation curve.

100
50
None of these
78

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Mass Transfer
Schmidt number is given by

Re.Pe
Sh x Pe
Μ/ρDAB
Re/Pe

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

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

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