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Mass Transfer

Mass Transfer
The unit of volumetric diffusivity is

Cm²/seC₂
Cm/sec
Cm²/sec
Cm³/sec

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Mass Transfer
Which of the following employs an accessory known as 'drift eliminator' ?

Mechanical draft cooling tower
Rotating disc contactor
Multiple effect evaporator
Rotary dryer

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Mass Transfer
Capacity of a rotary dryer depends on its

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

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Mass Transfer
In extractive distillation, solvent is

Of high viscosity to give high tray efficiency
Of high volatility
Added to alter the relative volatility of the mixture
Present in overhead stream

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Mass Transfer
The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if

NSc = 1
NPr = NLe
NSc = NPr = NLe
NSc = NLe

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Mass Transfer
Leaching rate is independent of the

Temperature
Agitation
None of the listed here
Particle size

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