Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when

Mass Transfer
Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when

Only vapor phase follows Raoult's law

Vapor phase obeys Dalton's law and liquid phase obeys Raoult's law

Liquid phase obeys Dalton's law and vapor phase obeys Raoult's law

Only liquid phase obeys Dalton's law

Only vapor phase follows Raoult's law

Vapor phase obeys Dalton's law and liquid phase obeys Raoult's law

Liquid phase obeys Dalton's law and vapor phase obeys Raoult's law

Only liquid phase obeys Dalton's law

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Mass Transfer
For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is

Not required

Calculated

Known

Unknown

Not required

Calculated

Known

Unknown

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Mass Transfer
A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,

Composition of vapors and that of liquid do not vary throughout the column

Reboiler load and condenser load are minimum

The top and bottom compositions correspond to the maximum enrichment available

The top and bottom compositions are unchanged with and without total reflux

Composition of vapors and that of liquid do not vary throughout the column

Reboiler load and condenser load are minimum

The top and bottom compositions correspond to the maximum enrichment available

The top and bottom compositions are unchanged with and without total reflux

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Mass Transfer
At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.

Is same as

Cannot be predicted as data are insufficient

Is greater than

Is lower than

Is same as

Cannot be predicted as data are insufficient

Is greater than

Is lower than

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Mass Transfer
According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)

D0.5

D

1/D

D2

D0.5

D

1/D

D2

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Mass Transfer
For the same process conditions, the reflux ratio of an unlagged distillation column

Decreases in winter

None of these

Increases in winter

Increases in summer

Decreases in winter

None of these

Increases in winter

Increases in summer

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Mass Transfer

Mass Transfer Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when

Mass Transfer For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is

Mass Transfer A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,

Mass Transfer At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.

Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)

Mass Transfer For the same process conditions, the reflux ratio of an unlagged distillation column

Mass Transfer
Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when

Mass Transfer
For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is

Mass Transfer
A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,

Mass Transfer
At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.

Mass Transfer
According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)

Mass Transfer
For the same process conditions, the reflux ratio of an unlagged distillation column