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Mass Transfer

Mass Transfer
Schmidt number is given by

Re.Pe
Μ/ρDAB
Re/Pe
Sh x Pe

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Mass Transfer
Which of the following is not fixed by the process requirements, in the design of absorbers?

Terminal concentrations of gas stream
None of these
Flow rate of the entering gas
Composition of the entering liquid

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Mass Transfer
Sticky material can be dried in a __________ dryer.

None of these
Fluidised bed
Tray
Rotary

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Mass Transfer
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in

Greater degree of separation with a fixed number of trays
None of these
Increased reboiler load
Increased reflux ratio

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Mass Transfer
In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be

5 metres above ground
10 metres above ground
At ground level
2 metres above the ground

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Mass Transfer
For which of the following unit operations, Lewis number is of significance?

Binary distillation
Gas absorption
Humidification
Adsorption

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