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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)

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

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Mass Transfer
Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre.

None of the listed here
Electrical resistance
Thermal conductivity
Strength

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Mass Transfer
If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are

Neither A nor B
Both A & B
Parallel
Straight

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Mass Transfer
The diffusivity (D) in a binary gas mixture is related to the temperature (T) as

D ∝ T2
D ∝ T0.5
D ∝ T
D ∝ T1.5

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Mass Transfer
In case of gases, the binary diffusivity is proportional to (where, P = pressure)

1/√P
P
√P
1/P

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Mass Transfer
Which of the following adsorbent is used to decolourise yellow glycerine?

Activated carbon
Alumina
Silica gel
Fuller

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