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Mass Transfer

Mass Transfer
Molality is defined as the number of gm moles of solute per __________ of solvent.

Gm
Litre
Kg
m³

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Mass Transfer
When both the fluids flow concurrently in an absorber, the slope of the operating line is

- ve
-1
+ ve
1

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Mass Transfer
Which of the following parameters remains almost constant during adiabatic saturation of unsaturated air?

Dry bulb temperature
None of these
Wet bulb temperature
Dew point

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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
Percentage
None of these

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Mass Transfer
Absorption accompanied with chemical reaction is exemplified by the absorption of

Ammonia in water
Benzol present in coke oven gas by wash oil
SO₂ in alkaline solution
All of these

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Mass Transfer
If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is

0.017
0.215
0.31
0.107

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