Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent?

Mass Transfer
Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent?

Heating and dehumidification at almost constant wet bulb temperature

Cooling and dehumidification

Dehumidification with dry bulb temperature remaining constant

None of these

Heating and dehumidification at almost constant wet bulb temperature

Cooling and dehumidification

Dehumidification with dry bulb temperature remaining constant

None of these

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Mass Transfer
Pick out the wrong statement. Raoult's law does not apply, when the

Attractive forces between like and unlike molecules in the solution are approximately equal

Size of component molecules are not equal

Chemical combination or molecular association between unlike molecules takes place in the formation of solution

Component molecules are nonpolar

Attractive forces between like and unlike molecules in the solution are approximately equal

Size of component molecules are not equal

Chemical combination or molecular association between unlike molecules takes place in the formation of solution

Component molecules are nonpolar

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Mass Transfer
The value of L/mG ratio for economical absorption operation ranges from

0.5 to 0.8

0.8 to 1.2

2.5 to 3.5

1.25 to 2.0

0.5 to 0.8

0.8 to 1.2

2.5 to 3.5

1.25 to 2.0

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Mass Transfer
Priming in a distillation column

Results from very low gas velocity

Reduces the overall pressure drop

Is characterised by the presence of foam throughout the space between trays

Is desirable from point efficiency consideration

Results from very low gas velocity

Reduces the overall pressure drop

Is characterised by the presence of foam throughout the space between trays

Is desirable from point efficiency consideration

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Mass Transfer
Relative humidity is the ratio of the

Actual humidity to saturation humidity

Partial pressure of the vapour to the vapour pressure of the liquid at room temperature

Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature

None of these

Actual humidity to saturation humidity

Partial pressure of the vapour to the vapour pressure of the liquid at room temperature

Partial pressure of the vapour to the vapour pressure of the liquid at gas temperature

None of these

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Mass Transfer
In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.

Operating

Total

Maximum permissible

Minimum

Operating

Total

Maximum permissible

Minimum

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Mass Transfer

Mass Transfer Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent?

Mass Transfer Pick out the wrong statement. Raoult's law does not apply, when the

Mass Transfer The value of L/mG ratio for economical absorption operation ranges from

Mass Transfer Priming in a distillation column

Mass Transfer Relative humidity is the ratio of the

Mass Transfer In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.

Mass Transfer
Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent?

Mass Transfer
Pick out the wrong statement. Raoult's law does not apply, when the

Mass Transfer
The value of L/mG ratio for economical absorption operation ranges from

Mass Transfer
Priming in a distillation column

Mass Transfer
Relative humidity is the ratio of the

Mass Transfer
In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.