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Mass Transfer

Mass Transfer
Paper industry employs __________ driers.

Rotary
Fluidised bed
Spray
Cylinder

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Mass Transfer
High pressure at the bottom of a distillation tower handling heat sensitive materials results in

Erosion of the tower
Increased relative volatility
Thermal decomposition of bottoms
Very efficient operation

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Mass Transfer
During bottling of cold drinks (e.g. Pepsi), the main resistance to mass transfer for the absorption of carbon dioxide in water lies in the

None of these
Gas film
Liquid film
Liquid-gas interface

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Mass Transfer
An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is

9.21
4.605
0.001
100

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Mass Transfer
______ is the separation technique used for desalination of sea water.

Thermal diffusion
Absorption
Adsorption
Reverse osmosis

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Mass Transfer
At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

Operating
Minimum
Total
Maximum permissible

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