CHEMICAL ENGINEERING | Mass Transfer

__________ is the separation technique used for desalination of sea water.

Byadmin August 29, 2022

Question: __________ is the separation technique used for desalination of sea water.
[A].

Thermal diffusion

[B].

Reverse osmosis

[C].

Adsorption

[D].

absorption

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

A refrigerator works on the principle of __________ law of thermodynamics.

Question: A refrigerator works on the principle of __________ law of thermodynamics.
[A].

zeroth
[B].
first
[C].
second
[D].
third

Answer: Option C

Explanation:

No answer description available for this question.

Read More A refrigerator works on the principle of __________ law of thermodynamics.
Mass Transfer

A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is___________________?

A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is___________________?

A. 0.54
B. 1.04
C. 1.24
D. 1.94

Read More A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is___________________?
CHEMICAL ENGINEERING | Chemical Reaction Engineering

With increase in initial concentration, the fractional conversion of a first order reaction in a given time

Question: With increase in initial concentration, the fractional conversion of a first order reaction in a given time
[A].

increases
[B].
decreases
[C].
remains constant
[D].
unpredictable

Answer: Option C

Explanation:

No answer description available for this question.

Read More With increase in initial concentration, the fractional conversion of a first order reaction in a given time
CHEMICAL ENGINEERING | Chemical Process

Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.

Question: Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.
[A].

coke and sand
[B].
brine and coal
[C].
coke and caustic soda
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.
Mass Transfer

As per Gilliland’s equation, the diffusivity is___________________?

As per Gilliland’s equation, the diffusivity is___________________?

A. Directly proportional to ‘T1.5’
B. Inversely proportional to ‘P’
C. Dependent on the molecular volume & molecular weight of components
D. All A , B. & C.

Read More As per Gilliland’s equation, the diffusivity is___________________?
CHEMICAL ENGINEERING | Chemical Engineering Basics

Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

Question: Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?
[A].

enthalpy
[B].
relative humidity
[C].
wet bulb temperature
[D].
dew point temperature

Answer: Option D

Explanation:

No answer description available for this question.

Read More Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs?

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