CHEMICAL ENGINEERING | Mass Transfer

For absorbing a sparingly soluble gas in a liquid, the

Byadmin August 25, 2022

Question: For absorbing a sparingly soluble gas in a liquid, the
[A].

gas side co-efficient should be increased.

[B].

liquid side coefficient should be increased.

[C].

gas side co-efficient should be decreased.

[D].

liquid side co-efficient should be decreased.

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Engineering Basics

Earing is a defect found in steels after the following metal working operation (s).

Question: Earing is a defect found in steels after the following metal working operation (s).
[A].

Deep drawing
[B].
Rolling
[C].
Extrusion
[D].
Wire drawing

Answer: Option A

Explanation:

No answer description available for this question.

Read More Earing is a defect found in steels after the following metal working operation (s).
CHEMICAL ENGINEERING | Heat Transfer

A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because

Question: A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because
[A].

total heat transfer area of all the effects is -less than that in a single effect evaporator system.
[B].
total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect.
[C].
boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system.
[D].
heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system.

Answer: Option B

Explanation:

No answer description available for this question.

Read More A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because
Mass Transfer

At equilibrium the concentration of water in vapour phase (C*) in kg/m3 of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m3 containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is_________________?

At equilibrium the concentration of water in vapour phase (C*) in kg/m3 of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m3 containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is_________________?

A. 0.0
B. 0.2
C. 0.4
D. 1.0

Read More At equilibrium the concentration of water in vapour phase (C*) in kg/m3 of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m3 containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is_________________?
CHEMICAL ENGINEERING | Chemical Reaction Engineering

‘If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process’. The diffusivity under this condition is called ‘Knudsen diffusivity’, which is affected by the

Question: ‘If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process’. The diffusivity under this condition is called ‘Knudsen diffusivity’, which is affected by the
[A].

pressure
[B].
temperature
[C].
both (a) & (b)
[D].
neither (a) nor (b)

Answer: Option B

Explanation:

No answer description available for this question.

Read More ‘If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process’. The diffusivity under this condition is called ‘Knudsen diffusivity’, which is affected by the
CHEMICAL ENGINEERING | Chemical Engineering Basics

__________ is used as a material of construction for the blade of power saw.

Question: __________ is used as a material of construction for the blade of power saw.
[A].

Wrought iron
[B].
Stainless steel
[C].
Mild steel
[D].
High speed steel

Answer: Option D

Explanation:

No answer description available for this question.

Read More __________ is used as a material of construction for the blade of power saw.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Broaching tools are usually made of

Question: Broaching tools are usually made of
[A].

cermets
[B].
high speed steel
[C].
tungsten carbide
[D].
stellite

Answer: Option B

Explanation:

No answer description available for this question.

Read More Broaching tools are usually made of

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