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Mass Transfer

With the lowering of equiliDrium pressure, at a given temperature, the amount of ad-sorbate on the adsorbent

Question: With the lowering of equiliDrium pressure, at a given temperature, the amount of ad-sorbate on the adsorbent
[A].

increases.

[B].

decreases.

[C].

remains same.

[D].

either (a) or (b), depends on the system.

Answer: Option B

Explanation:

No answer description available for this question.

With the lowering of equiliDrium pressure, at a given temperature, the amount of ad-sorbate on the adsorbent Read More »

CHEMICAL ENGINEERING, Mass Transfer

With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)

Question: With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)
[A].

increases

[B].

decreases

[C].

remains unaffected

[D].

increases Linearly

Answer: Option A

Explanation:

No answer description available for this question.

With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system) Read More »

CHEMICAL ENGINEERING, Mass Transfer

With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop

Question: With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop
[A].

decreases

[B].

remains unchanged

[C].

increases

[D].

decreases exponentially

Answer: Option C

Explanation:

No answer description available for this question.

With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop Read More »

CHEMICAL ENGINEERING, Mass Transfer

The Schmidt number which is defined as, μ/ρ D, is the ratio of the

Question: The Schmidt number which is defined as, μ/ρ D, is the ratio of the
[A].

momentum diffusivity to the mass dif-fusivity.

[B].

thermal diffusivity to the mass diffusivity.

[C].

momentum diffusivity to the thermal diffusivity.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

The Schmidt number which is defined as, μ/ρ D, is the ratio of the Read More »

CHEMICAL ENGINEERING, Mass Transfer

The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

Question: The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.
[A].

composition

[B].

temperature

[C].

total pressure

[D].

all (a), (b) and (c)

Answer: Option B

Explanation:

No answer description available for this question.

The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture. Read More »

CHEMICAL ENGINEERING, Mass Transfer

Pick out the correct statement.

Question: Pick out the correct statement.
[A].

Ponchan-Savarit method is more accurate than McCabe-Thiele method to determine the number of theoretical stages required for the separation of non-ideal binary system by distillation.

[B].

A sharp decrease in pressure drop is an indication of flooding in a distillation coloumn.

[C].

Solvent used in extractive distillation should be of high volatility.

[D].

Flash distillation is suitable for separating components which have very close boiling temperature.

Answer: Option A

Explanation:

No answer description available for this question.

Pick out the correct statement. Read More »

CHEMICAL ENGINEERING, Mass Transfer