Mass Transfer

Minimum possible diameter of a packed column is decided mainly by the________________________?

Byadmin February 17, 2019August 22, 2021

Minimum possible diameter of a packed column is decided mainly by the________________________?

A. Flooding
B. Gas viscosity
C. Liquid density
D. Liquid hold up

CHEMICAL ENGINEERING | Mass Transfer

Dew point of an air-water vapor mixture

Question: Dew point of an air-water vapor mixture
[A].

decreases with decrease in pressure.
[B].
at constant humidity & total pressure is fixed.
[C].
corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve.
[D].
all ‘a’, ‘b’ & ‘c’.

Answer: Option D

Explanation:

No answer description available for this question.

Read More Dew point of an air-water vapor mixture
CHEMICAL ENGINEERING | Mass Transfer

A distillation column separates 10000 kg/hr of a benzene-toluene mixture as shown in the figure below :In the figure xF, xD and xW represent the weight fraction of benzene in the feed, distillate and residue respectively. The reflux ratio is

Question: A distillation column separates 10000 kg/hr of a benzene-toluene mixture as shown in the figure below :In the figure xF, xD and xW represent the weight fraction of benzene in the feed, distillate and residue respectively. The reflux ratio is
[A].

0.5
[B].
0.6
[C].
1.0
[D].
2.0

Answer: Option B

Explanation:

No answer description available for this question.

Read More A distillation column separates 10000 kg/hr of a benzene-toluene mixture as shown in the figure below :In the figure xF, xD and xW represent the weight fraction of benzene in the feed, distillate and residue respectively. The reflux ratio is
Mass Transfer

In which of the following unit operations, the selectivity is an important parameter ?

In which of the following unit operations, the selectivity is an important parameter ?

A. Distillation
B. Solvent extraction
C. Absorption
D. None of these

Read More In which of the following unit operations, the selectivity is an important parameter ?
Mass Transfer

Dry bulb temperature of the gas is _____________ the wet bulb temperature?

Dry bulb temperature of the gas is _____________ the wet bulb temperature?

A. Less than
B. More than
C. Equal to
D. None of these

Read More Dry bulb temperature of the gas is _____________ the wet bulb temperature?
Mass Transfer

In case of binary distillation, increasing the reflux ratio above optimum does not result in the increase of_______________________?

In case of binary distillation, increasing the reflux ratio above optimum does not result in the increase of_______________________?

A. Area between operating line and 45° diagonal x-y diagram
B. Condenser and reboiler surfaces
C. Tower cross-section
D. None of these

Read More In case of binary distillation, increasing the reflux ratio above optimum does not result in the increase of_______________________?
Mass Transfer

The relation, Sc = Pr = 1, is valid, when the mechanism of ______________ transfer is same?

The relation, Sc = Pr = 1, is valid, when the mechanism of ______________ transfer is same?

A. Heat and mass
B. Mass and momentum
C. Heat and momentum
D. Heat, momentum and mass

Read More The relation, Sc = Pr = 1, is valid, when the mechanism of ______________ transfer is same?

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