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Mass Transfer

Mass Transfer
Tea percolation employs

None of these
Liquid-liquid extraction
Leaching
Absorption

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Mass Transfer
The boiling points of pure components of a binary system __________ with increase in total pressure of the system.

Increases
Decreases
Remains unchanged
May increase or decrease, depends on the system

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Mass Transfer
Which of the following has the same dimension as mass diffusivity?

Thermal diffusivity
Momentum flux
Both Momentum flux & Kinematic viscosity
Kinematic viscosity

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Mass Transfer
In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is

S = ∞
S = 1
S < 1
S > 1

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Mass Transfer
During the constant rate period of drying of a solid,

Increased air humidity decreases the rate of drying
Surface evaporation of unbound moisture occurs
Increasing the air temperature decreases the drying rate
None of these

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

Liquid SO₂
Furfurol
Phenol
Hexane

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