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Mass Transfer

Mass Transfer
The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line)

LG/m
ML/G
L/mG
G/mL

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Mass Transfer
The suitable evaporator for concentration of foaming liquids is a __________ evaporator.

Falling film
Vacuum
Long tube
Short tube

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Mass Transfer
During drying of a solid, the critical moisture content increases with

Decreased drying rate
Both B and C
Increased drying rate
Increased thickness of the solid

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Mass Transfer
The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

-ve
∞
+ve

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Mass Transfer
Capacity of a rotary dryer depends on its

None of the listed here
Inclination with ground surface
R.p.m
Both Inclination with ground surface & R.p.m

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Mass Transfer
Drying operation under vacuum is carried out to

Increase drying temperature
Dry those materials which have very high unbound mositure content
Dry materials having high bound moisture content
Reduce drying temperature

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