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Mass Transfer

Mass Transfer
Small dia distillation column can be a

Bubble cap
Sieve tray
Packed column
Any of these

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Mass Transfer
What is the reflux ratio at total reflux?

Data insufficient
Zero
Infinity
Unity

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Mass Transfer
The wet and 'dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C.

25
< 25
-25
> 25

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Mass Transfer
Which of the following binary systems is an example of a maximum boiling azeotrope?

Acetone-carbon disulphide
Water-hydrochloric acid
None of the listed here
Water-ethyl alcohol

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

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

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Mass Transfer
In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is

S > 1
S < 1
S = 1
S = ∞

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