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 At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped).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
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 At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped).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

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number.

None of these

Sherwood

Grashoff

Lewis

None of these

Sherwood

Grashoff

Lewis

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
Which of the following adsorbant is used in the refinning of sugar?

Bone charcoal

Wood charcoal

Activated clay

Silica gel

Bone charcoal

Wood charcoal

Activated clay

Silica gel

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
As per Gilliland's equation, the diffusivity is

Directly proportional to 'T1.5'

Dependent on the molecular volume & molecular weight of components

Inversely proportional to 'P'

All of these

Directly proportional to 'T1.5'

Dependent on the molecular volume & molecular weight of components

Inversely proportional to 'P'

All of these

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is

0.25

0.175

0.4

0.2

0.25

0.175

0.4

0.2

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
For absorbing a sparingly soluble gas in a liquid

Liquid side mass transfer co-efficient should be decreased

Liquid side mass transfer co-efficient should be increased

Gas side mass transfer co-efficient should be increased

Mass transfer co-efficient must be kept constant

Liquid side mass transfer co-efficient should be decreased

Liquid side mass transfer co-efficient should be increased

Gas side mass transfer co-efficient should be increased

Mass transfer co-efficient must be kept constant

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer

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 In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number.

Mass Transfer Which of the following adsorbant is used in the refinning of sugar?

Mass Transfer As per Gilliland's equation, the diffusivity is

Mass Transfer 1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is

Mass Transfer For absorbing a sparingly soluble gas in a liquid

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
In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number.

Mass Transfer
Which of the following adsorbant is used in the refinning of sugar?

Mass Transfer
As per Gilliland's equation, the diffusivity is

Mass Transfer
1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is

Mass Transfer
For absorbing a sparingly soluble gas in a liquid