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Mass Transfer

Mass Transfer
When the psychometric ratio is __________ then the adiabatic saturation temperature and wet bulb temperature becomes equal.

< 1
?
1
> 1

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Mass Transfer
In extractive distillation, solvent is

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

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Mass Transfer
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

Both plug & perfectly mixed
None of the listed here
Perfectly mixed
Plug

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Mass Transfer
In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is

1
0.6
2
0.5

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Mass Transfer
With increase in temperature, the leaching rate increases because of the

Decreased viscosity of liquid
Both Decreased viscosity of liquid & Increased diffusivity
None of the listed here
Increased diffusivity

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Mass Transfer
The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Nature of the moisture
Temperature
Nature of the solid
All of these

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