The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Mass Transfer
The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Decrease

Depend on saturated boiling point; may increase or decrease

Increase

Remains same

Decrease

Depend on saturated boiling point; may increase or decrease

Increase

Remains same

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Mass Transfer
The binary diffusivity in gases and liquids vary respectively as

√T and T3/2

T3/2 and √T

T and T3/2

T3/2 and T

√T and T3/2

T3/2 and √T

T and T3/2

T3/2 and T

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Mass Transfer
Drying operation under vacuum is carried out to

Reduce drying temperature

Dry those materials which have very high unbound mositure content

Increase drying temperature

Dry materials having high bound moisture content

Reduce drying temperature

Dry those materials which have very high unbound mositure content

Increase drying temperature

Dry materials having high bound moisture content

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Mass Transfer
Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. )

(1 - Ri) = Ro/Ri

(1 + Ri) = Ro/Ri

(1 - Ro) = Ro/Ri

(1 + Ro) = Ro/Ri

(1 - Ri) = Ro/Ri

(1 + Ri) = Ro/Ri

(1 - Ro) = Ro/Ri

(1 + Ro) = Ro/Ri

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Mass Transfer
Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent

A binary mixture

A pure component

A ternary mixture

Partially miscible ternary system

A binary mixture

A pure component

A ternary mixture

Partially miscible ternary system

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Mass Transfer
If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are

Neither A nor B

Parallel

Both A & B

Straight

Neither A nor B

Parallel

Both A & B

Straight

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Mass Transfer

Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Mass Transfer The binary diffusivity in gases and liquids vary respectively as

Mass Transfer Drying operation under vacuum is carried out to

Mass Transfer Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. )

Mass Transfer Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent

Mass Transfer If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are

Mass Transfer
The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will

Mass Transfer
The binary diffusivity in gases and liquids vary respectively as

Mass Transfer
Drying operation under vacuum is carried out to

Mass Transfer
Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. )

Mass Transfer
Sides of equilateral-triangular co-ordinates (on which ternary liquid system is plotted) represent

Mass Transfer
If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are