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Mass Transfer

Mass Transfer
Rate of leaching increases with increasing

Pressure
Size of the solid
Viscosity of solvent
Temperature

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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 reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives

High pressure drop and low hold up
Low pressure drop and high hold up
Low pressure drop and low hold up
High pressure drop and high hold up

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Mass Transfer
Which of the following is the most commonly used leaching solvent in vegetable oil industry?

Phenol
Hexane
Liquid SO₂
Furfurol

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Mass Transfer
Rotary dryers cannot handle __________ materials.

Free flowing
Sticky
Dry
Grannular

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Mass Transfer
Flooding results in

Good contact between the fluids
High gas velocity
High tray efficiency
Low tray efficiency

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MORE MCQ ON Mass Transfer

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