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CHEMICAL ENGINEERING

With increase in temperature, the leaching rate increases because of the

CHEMICAL ENGINEERING, Mass Transfer /
Question: With increase in temperature, the leaching rate increases because of the
[A].

increased diffusivity.

[B].

decreased viscosity of liquid.

[C].

both (a) and (b).

[D].

neither (a) nor (b).

Answer: Option C

Explanation:

No answer description available for this question.

With increase in temperature, the leaching rate increases because of the Read More »

CHEMICAL ENGINEERING, Mass Transfer

In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.

CHEMICAL ENGINEERING, Mass Transfer /
Question: In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.
[A].

increases with increase in

[B].

is one at unity value of

[C].

both (a) and (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor. Read More »

CHEMICAL ENGINEERING, Mass Transfer

In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit)

CHEMICAL ENGINEERING, Mass Transfer /
Question: In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit)
[A].

straight

[B].

parallel

[C].

both (a) & (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit) Read More »

CHEMICAL ENGINEERING, Mass Transfer

In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.

CHEMICAL ENGINEERING, Mass Transfer /
Question: In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.
[A].

total

[B].

minimum

[C].

operating

[D].

maximum permissible

Answer: Option A

Explanation:

No answer description available for this question.

In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux. Read More »

CHEMICAL ENGINEERING, Mass Transfer

During the constant rate period of drying of a solid,

CHEMICAL ENGINEERING, Mass Transfer /
Question: During the constant rate period of drying of a solid,
[A].

increased air humidity decreases the rate of drying.

[B].

increasing the air temperature decreases the drying rate.

[C].

surface evaporation of unbound moisture occurs.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

During the constant rate period of drying of a solid, Read More »

CHEMICAL ENGINEERING, Mass Transfer