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Mass Transfer

Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Pulse
Sieve plate
Bubble cap
Packed

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Mass Transfer
Water entrained by circulating air in cooling towers is termed as

Blow down
Drift
None of the listed here
Vapor load

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Mass Transfer
Flash distillation is suitable for the separation of components

Having very close boiling points
Which form minimum boiling azeotrope
Which form maximum boiling azeotrope
Having very wide boiling points

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Mass Transfer
The binary diffusivity in gases at atmospheric conditions is about

10-9 cm/sec
10-4 cm²/seC₂
10-3 sec/cm
10-1 cm²/sec

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Mass Transfer
Which of the following assumes constant molal vaporisation and overflow?

Plate absorption column
McCabe-Thiele method
Enthalpy concentration method
Ponchan-Savarit method

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Mass Transfer
In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

Is one at unity value of
Both A and B
Increases with increase in
Neither A nor B

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