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Mass Transfer

Mass Transfer
Cox chart is useful in the design of

Dryer
Evaporator
Crystalliser
Distillation column

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Mass Transfer
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

None of these
Induced draft cooling tower
Natural draft cooling tower
Spray chamber

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Mass Transfer
The fixed cost of a distillation column at minimum reflux ratio is

Infinite
Optimum
Minimum
None of these

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Mass Transfer
Schimdt number and Lewis number for pure air at atmospheric conditions are respectively

>1 and ≈ 1
1 and 0
0 and ≈ 1
< 1 and ≈ 1

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Mass Transfer
In a binary system, separation is very efficient, when the relative volatility is

< 1
> 1
0.5
1

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Mass Transfer
A slurry is to be dried to produce flaky solid. Which dryer would you recommend?

Drum dryer
Rotary dryer
Dielectric dryer
Spray dryer

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