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Mass Transfer

Mass Transfer
Penetration model (theory) for mass transfer was enunciated by

Danckwerts
Toor and Marchello
Kissinevskii
Higbie

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Mass Transfer
At a given equilibrium pressure, with increase in temperature, the concentration of adsorbed gas on solid adsorbant

Remains unchanged
Increases exponentially
Decreases
Increases

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Mass Transfer
Which of the following equipments is not used for gas dispersion?

Perforated sieve tray towers
Bubble cap tray towers
Spray towers
Agitated vessels

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Mass Transfer
The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the

Temperature falls
Temperature rises
Pressure rises
Pressure falls

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Mass Transfer
Which of the following unit operations makes use of Thiele-Geddes equation?

Multicomponent absorption with chemical reaction
Multicomponent distillation
Solid-liquid extraction
Liquid-liquid extraction

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Mass Transfer
_______ number indicates the ratio of the rates of the heat and mass transfer incase of a cooling tower.

Stanton
Lewis
Peclet
Sherwood

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