Solvent used in extractive distillation

Mass Transfer
Solvent used in extractive distillation

Is of low volatility

Does not alter the relative volatility of the original components

Forms a high boiling azeotrope

Forms a low boiling azeotrope

Is of low volatility

Does not alter the relative volatility of the original components

Forms a high boiling azeotrope

Forms a low boiling azeotrope

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Mass Transfer
It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

71 min

15 min

94 min

51 min

71 min

15 min

94 min

51 min

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Mass Transfer
With increase in pressure, the relative volatility for a binary system

Decreases

Either A or B, depends on the system

Increases

Remains same

Decreases

Either A or B, depends on the system

Increases

Remains same

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Mass Transfer
When acetone is added in a two layer mixture of methyl isobutyl ketone and water at 30°C, the acetone distributes between the two layers and the composition of the layer follows two solubility curves. For this system,

As the acetone concentration increases, the solubility curves approach each other

All of these

The distribution curve which is a plot between x (acetone concentration in one phase) and y (acetone concentration in other phase) is analogous to x-y curve used in distillation and absorption termina

Both the phases become identical at a particular common point on both the solubility curves called the plait point

As the acetone concentration increases, the solubility curves approach each other

All of these

The distribution curve which is a plot between x (acetone concentration in one phase) and y (acetone concentration in other phase) is analogous to x-y curve used in distillation and absorption termina

Both the phases become identical at a particular common point on both the solubility curves called the plait point

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Mass Transfer
Heat sensitive materials with very high latent heat of vaporisation may be economically separated using

Absorption

Distillation

Liquid extraction

Evaporation

Absorption

Distillation

Liquid extraction

Evaporation

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Mass Transfer
__________ equation applies to diffusivities in liquids.

Wilke and Chang

None of these

Gilliland

Hirschfelder

Wilke and Chang

None of these

Gilliland

Hirschfelder

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Mass Transfer

Mass Transfer Solvent used in extractive distillation

Mass Transfer It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

Mass Transfer With increase in pressure, the relative volatility for a binary system

Mass Transfer When acetone is added in a two layer mixture of methyl isobutyl ketone and water at 30°C, the acetone distributes between the two layers and the composition of the layer follows two solubility curves. For this system,

Mass Transfer Heat sensitive materials with very high latent heat of vaporisation may be economically separated using

Mass Transfer __________ equation applies to diffusivities in liquids.

Mass Transfer
Solvent used in extractive distillation

Mass Transfer
It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

Mass Transfer
With increase in pressure, the relative volatility for a binary system

Mass Transfer
When acetone is added in a two layer mixture of methyl isobutyl ketone and water at 30°C, the acetone distributes between the two layers and the composition of the layer follows two solubility curves. For this system,

Mass Transfer
Heat sensitive materials with very high latent heat of vaporisation may be economically separated using

Mass Transfer
__________ equation applies to diffusivities in liquids.