Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled

Mass Transfer
Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled

And dehumidified with decrease in wet bulb temperature

At the same relative humidity

And humidified

And dehumidified with increase in wet bulb temperature

And dehumidified with decrease in wet bulb temperature

At the same relative humidity

And humidified

And dehumidified with increase in wet bulb temperature

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Mass Transfer
According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn.

6

8

10

12

6

8

10

12

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Mass Transfer
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

90-100

44119

30-40

70-80

90-100

44119

30-40

70-80

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Mass Transfer
Very tall packed towers are divided into series of beds to

Reduce liquid hold-up

Avoid channelling

Avoid flooding

Reduce the overall pressure drop

Reduce liquid hold-up

Avoid channelling

Avoid flooding

Reduce the overall pressure drop

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Mass Transfer
__________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.

Bubble

Tray

Spray

Packed

Bubble

Tray

Spray

Packed

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Mass Transfer
Priming in a distillation column

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

Results from very low gas velocity

Reduces the overall pressure drop

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Mass Transfer

Mass Transfer Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled

Mass Transfer A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

Mass Transfer Very tall packed towers are divided into series of beds to

Mass Transfer __________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.

Mass Transfer Priming in a distillation column

Mass Transfer
Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled

Mass Transfer
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

Mass Transfer
Very tall packed towers are divided into series of beds to

Mass Transfer
__________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.

Mass Transfer
Priming in a distillation column