For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

Mass Transfer
For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

F/(FG.a)

(G.a)/FG

L/(FG.G)

FG/(G.a)

F/(FG.a)

(G.a)/FG

L/(FG.G)

FG/(G.a)

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Mass Transfer
Azeotropism for ethyl alcohol-water system disappears by

Increasing temperature

Decreasing pressure

Increasing pressure

No means

Increasing temperature

Decreasing pressure

Increasing pressure

No means

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Mass Transfer
In most of the vacuum crystalliser, vacuum is generally produced by means of a

None of these

Steam jet ejector with a barometric condenser

Suction pump

Compressed air jet

None of these

Steam jet ejector with a barometric condenser

Suction pump

Compressed air jet

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Mass Transfer
Cox chart is useful in the design of

Dryer

Distillation column

Crystalliser

Evaporator

Dryer

Distillation column

Crystalliser

Evaporator

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Mass Transfer
In batch distillation with constant reflux, overhead product composition __________ with time.

Decreases

Increases

May increase on decrease, depends on the system

Does not vary

Decreases

Increases

May increase on decrease, depends on the system

Does not vary

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Mass Transfer
What is the degree of freedom of an absorption process in which only one component is transferred between phases?

1

3

2

4

1

3

2

4

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Mass Transfer

Mass Transfer For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

Mass Transfer Azeotropism for ethyl alcohol-water system disappears by

Mass Transfer In most of the vacuum crystalliser, vacuum is generally produced by means of a

Mass Transfer Cox chart is useful in the design of

Mass Transfer In batch distillation with constant reflux, overhead product composition __________ with time.

Mass Transfer What is the degree of freedom of an absorption process in which only one component is transferred between phases?

Mass Transfer
For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

Mass Transfer
Azeotropism for ethyl alcohol-water system disappears by

Mass Transfer
In most of the vacuum crystalliser, vacuum is generally produced by means of a

Mass Transfer
Cox chart is useful in the design of

Mass Transfer
In batch distillation with constant reflux, overhead product composition __________ with time.

Mass Transfer
What is the degree of freedom of an absorption process in which only one component is transferred between phases?