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Mass Transfer

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

Rotary
Spouted bed
Tray
Truck

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Mass Transfer
Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

Relative
Molal
None of these
Percentage

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Mass Transfer
Dimension of mass diffusivity is the same as that of

Pressure
Dynamic viscosity
Kinematic viscosity
Surface tension

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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.

Dew point
Wet-bulb
Dry-bulb
Adiabatic saturation

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Mass Transfer
Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and

Dehumidified
Humidified with wet bulb temperature decreasing
Humidified at constant wet bulb temperature
None of these

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Mass Transfer
In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is

0.6
0.5
1
2

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