Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption.

Mass Transfer
Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption.

Higher than

Either same or higher than

Lower than

Same as

Higher than

Either same or higher than

Lower than

Same as

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter

< 6:1

< 8 : 1

> 4 :1

> 8:1

< 6:1

< 8 : 1

> 4 :1

> 8:1

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
In a counter-current liquid extractor

Both liquids can have any desired flow rate

Only one of the liquids may be pumped at any desired rate

Both liquids flow at fixed rate

Liquid's flow rate depends upon the temperature and pressure

Both liquids can have any desired flow rate

Only one of the liquids may be pumped at any desired rate

Both liquids flow at fixed rate

Liquid's flow rate depends upon the temperature and pressure

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
For a binary mixture with low relative volatility,

Use molecular distillation

Use high pressure distillation

An azeotrope may be formed during distillation

Use steam distillation

Use molecular distillation

Use high pressure distillation

An azeotrope may be formed during distillation

Use steam distillation

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Make up water is supplied during cooling tower operation to compensate for water losses due to

Evaporation

Blowdown

Entrainment

All of these

Evaporation

Blowdown

Entrainment

All of these

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Desirable value of absorption factor in an absorber is

1

0.5

> 1

< 1

1

0.5

> 1

< 1

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer

Mass Transfer In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter

Mass Transfer In a counter-current liquid extractor

Mass Transfer For a binary mixture with low relative volatility,

Mass Transfer Make up water is supplied during cooling tower operation to compensate for water losses due to

Mass Transfer Desirable value of absorption factor in an absorber is

Mass Transfer
In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter

Mass Transfer
In a counter-current liquid extractor

Mass Transfer
For a binary mixture with low relative volatility,

Mass Transfer
Make up water is supplied during cooling tower operation to compensate for water losses due to

Mass Transfer
Desirable value of absorption factor in an absorber is