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Mass Transfer

Mass Transfer
During drying operation, it is easier to remove the __________ moisture.

Unbound
Critical
Equilibrium
Bound

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Mass Transfer
The adiabatic saturation curve for a vapour-gas mixture is

Slightly concave upward
None of these
Straight line
Slightly concave downward

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Mass Transfer
The change in enthalpy per unit weight of adsorbed gas when adsorbed on gas free or "outgassed" adsorbent to from a definite concentration of adsorbate is called its

Heat of wetting
Differential heat of adsorption
Heat of normal condensation
Integral heat of adsorption

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Mass Transfer
Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C?

Humidification only
Evaporative cooling
Both heating and humidification
Heating only

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Mass Transfer
__________ columns are used for liquid dispersion in a continuous gas phase.

Packed
Sieve plate
Pulse
Bubble cap

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Mass Transfer
If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is

L/G
Always < 1
G/L
None of these

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