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Mass Transfer

Mass Transfer
Large scale drying of sugar is done in a __________ dryer.

Rotary
Spouted bed
Truck
Tray

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Mass Transfer
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.

Adiabatic saturation
Dry-bulb
Wet-bulb
Dew point

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Mass Transfer
Weight of 1 m³ of humid air as compared to 1 m³ of dry air, under the same conditions, is

Unpredictable
Same
Less
More

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Mass Transfer
Alcohol is dehydrated using __________ distillation.

Molecular
Azeotropic
Extractive
Steam

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Mass Transfer
Extraction of coffee from its seed is done by

Leaching
Extractive distillation
Liquid-liquid extraction
Steam distillation

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

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

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