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Mass Transfer

Mass Transfer
During drying operation, it is easier to remove the __________ moisture.

Critical
Bound
Unbound
Equilibrium

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Mass Transfer
Which of the following is considered equivalent to one theoretical stage in Mc-Cabe Thiele's method?

Both B and C
Partial condenser
Reboiler
Total condenser

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Mass Transfer
Which of the following plays an important role in problems of simultaneous heat and mass transfer?

Schmidt number
Lewis number
Sherwood number
Prandtl number

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Mass Transfer
Packed column distillation is limited to the column __________ metres.

Height < 6
Diameter < 0.6
Neither A nor B
Both A & B

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Mass Transfer
In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________ its relative saturation.

Equal to
Higher than
Either A or B, depends on the mixture composition
Lower than

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Mass Transfer
The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is

100
10
5
1

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