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Mass Transfer

Mass Transfer
Cox chart is useful in the design of

Distillation column
Evaporator
Dryer
Crystalliser

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Mass Transfer
Under conditions of flooding in packed tower, the gas pressure drop

Is maximum
Remains constant
Increases rapidly
Decreases rapidly

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Mass Transfer
Diameter to height ratio for a rashig ring is

2
0.5
5
1

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Mass Transfer
Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C?

Humidification only
Heating only
Evaporative cooling
Both heating and humidification

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Mass Transfer
Which of the following is considered equivalent to one theoretical stage in Mc-Cabe Thiele's method?

Reboiler
Both B and C
Total condenser
Partial condenser

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Mass Transfer
If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is

None of these
G/L
Always < 1
L/G

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