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Mass Transfer

Mass Transfer
An azeotropic mixture is a __________ mixture.

None of these
Constant boiling point
Binary
Ternary

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Mass Transfer
At 750°K and 1 atm, the approximate value of Schmidt number for air is

10
0.01
1
0.1

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Mass Transfer
Design calculation for multiple component distillation is done by

Mccabe-Thiele method
Tray to tray calculations
Enthalpy concentration method
Ponchon-Savarit method

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Mass Transfer
For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams

Passes through a maximum
Increases
Decreases
Remains unaffected

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Mass Transfer
Mass transfer co-efficient of liquid is

Affected more by temperature than that for gases
Not affected by the temperature
Affected much less by temperature than that for gases
None of these

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Mass Transfer
Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as

K ∝ D1.5
K ∝ D
K ∝ √D
K ∝ D2

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