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Mass Transfer

Mass Transfer
Molality is defined as the number of gm moles of solute per __________ of solvent.

Kg
Gm
m³
Litre

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Mass Transfer
With increase in temperature, the leaching rate increases due to

Both A & B
Decreased liquid viscosity
Neither A nor B
Increased diffusivity

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Mass Transfer
Ordinary diffusion process is also called __________ diffusion.

Pressure
Thermal
Concentration
Forced

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Mass Transfer
Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty?

Grid tray tower
Wetted wall tower
Perforated tray tower
Bubble cap tower

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Mass Transfer
For a binary mixture distillation process, the degree of freedom is 2. However, if the pressure is fixed in this process, the number of independent variables in this process will be

2
1
3

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Mass Transfer
Cox chart is useful in the design of

Crystalliser
Evaporator
Distillation column
Dryer

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