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The boiling points of pure components of a binary system __________ with increase in total pressure of the system.

CHEMICAL ENGINEERING, Mass Transfer /
Question: The boiling points of pure components of a binary system __________ with increase in total pressure of the system.
[A].

decreases

[B].

increases

[C].

remains unchanged

[D].

may increase or decrease, depends on the system.

Answer: Option B

Explanation:

No answer description available for this question.

The boiling points of pure components of a binary system __________ with increase in total pressure of the system. Read More »

CHEMICAL ENGINEERING, Mass Transfer

JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by

CHEMICAL ENGINEERING, Mass Transfer /
Question: JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by
[A].

Nsh = 2

[B].

Nst = 2

[C].

Nsc = 2

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by Read More »

CHEMICAL ENGINEERING, Mass Transfer

Laboratory determination of the dif-fusivity of vapor is done by __________ method.

CHEMICAL ENGINEERING, Mass Transfer /
Question: Laboratory determination of the dif-fusivity of vapor is done by __________ method.
[A].

wetted wall column

[B].

Gilliland’s

[C].

Winkel mann’s

[D].

Wike’s

Answer: Option C

Explanation:

No answer description available for this question.

Laboratory determination of the dif-fusivity of vapor is done by __________ method. Read More »

CHEMICAL ENGINEERING, Mass Transfer

For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).

CHEMICAL ENGINEERING, Mass Transfer /
Question: For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).
[A].

1-5

[B].

10-60

[C].

200-300

[D].

> 500

Answer: Option B

Explanation:

No answer description available for this question.

For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns). Read More »

CHEMICAL ENGINEERING, Mass Transfer

If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that

CHEMICAL ENGINEERING, Mass Transfer /
Question: If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that
[A].

the system comprises of partially mis-cible liquids.

[B].

the system comprises of miscible liquids.

[C].

the system comprises of an azeotrope.

[D].

on heating, a vapor phase will appear ; while on cooling, a solid phase will appear.

Answer: Option D

Explanation:

No answer description available for this question.

If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that Read More »

CHEMICAL ENGINEERING, Mass Transfer

Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant

CHEMICAL ENGINEERING, Mass Transfer /
Question: Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant
[A].

humidity

[B].

velocity

[C].

temperature

[D].

all (a), (b) & (c)

Answer: Option D

Explanation:

No answer description available for this question.

Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant Read More »

CHEMICAL ENGINEERING, Mass Transfer