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Mass Transfer

Mass Transfer
The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

∞
1
0.5
2

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Mass Transfer
Minimum possible diameter of a packed coloumn is decided mainly by the

Flooding
Liquid hold up
Gas viscosity
Liquid density

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Mass Transfer
Dry bulb temperature of unsaturated air is more than its __________ temperature.

Both A & B
Dew point
Wet bulb
Neither A nor B

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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
In physical terms, Schmidt number means

Mass diffusivity/thermal diffusivity
Momentum diffusivity/mass diffusivity
Thermal diffusivity/mass diffusivity
Thermal diffusivity/momentum diffusivity

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Mass Transfer
Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant.

Bubble cap column
Agitated vessel
Packed tower
Sieve tray column

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