CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respetively, the Carnot COP will be

Byadmin August 8, 2022

Question: In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respetively, the Carnot COP will be
[A].

5.2

[B].

6.2

[C].

0.168

[D].

data insufficient, can’t be found out

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Fuels and Combustion

Naphthalene is used for making

Question: Naphthalene is used for making
[A].

insecticides (e.g. moth balls).
[B].
unsaturated polyesters.
[C].
drug intermediates e.g. β-naphthol.
[D].
all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Chemical Process

Main constituents of natural rubber is

Question: Main constituents of natural rubber is
[A].

polystyrene
[B].
polyisoprene
[C].
polybutadiene
[D].
polychloroprene

Answer: Option B

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Materials and Construction

An ideal material of construction for the storage of 50% caustic soda solution would be

Question: An ideal material of construction for the storage of 50% caustic soda solution would be
[A].

karbate
[B].
high silicon cast iron
[C].
monel
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More An ideal material of construction for the storage of 50% caustic soda solution would be
CHEMICAL ENGINEERING | Fluid Mechanics

Head developed by a centrifugal pump depends on its

Question: Head developed by a centrifugal pump depends on its
[A].

speed
[B].
impeller diameter
[C].
both (a) and (b)
[D].
neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then(where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively)

Question: A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then(where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively)
[A].

Δ S1 is always < Δ SR
[B].
Δ S1 is sometimes > Δ SR
[C].
Δ S1 is always > Δ SR
[D].
Δ S1 is always = Δ SR

Answer: Option C

Explanation:

No answer description available for this question.

Read More A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then(where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively)
CHEMICAL ENGINEERING | Mass Transfer

Leaching of coarse solid lumps is also termed as

Question: Leaching of coarse solid lumps is also termed as
[A].

decoction
[B].
dissolution
[C].
percolation
[D].
agitation and settling

Answer: Option C

Explanation:

No answer description available for this question.

Read More Leaching of coarse solid lumps is also termed as

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