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Mass Transfer

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

Packed
Pulse
Bubble cap
Sieve plate

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Mass Transfer
The individual mass transfer co-efficients (moles/m² . s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling ?

Gas side
Both liquid and gas side
Liquid side
Interfacial

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Mass Transfer
Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in __________ tower.

Wetted wall
Perforated tray
Bubble cap
Packed

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Mass Transfer
Humid volume, at a given temperature is a/an __________ function of humidity.

Inverse
Exponential
Linear
Logarithmic

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Danckwerts
Stefan
Toor and Marchello
Fick

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

Sherwood
Stanton
Lewis
Peclet

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