In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean temperature difference) for counter flow as compared to that for parallel flow is__________________?

Byadmin February 7, 2019August 20, 2021

A. More
B. Less
C. Equal
D. Much more

Chemical Engineering Basics

Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is___________________?

Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is___________________?

A. Nickel
B. Cobalt
C. Vanadium
D. Platinum

Read More Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is___________________?
Chemical Engineering Basics

Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is_____________________?

Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is_____________________?

A. 5CaO. 3 Al2O3
B. 3CaO. Al2O3
C. 3CaO. SiO2
D. 2CaO. SiO2

Read More Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is_____________________?
CHEMICAL ENGINEERING | Chemical Engineering Basics

Cementite is in the lamellar form in the __________ phase of steel.

Question: Cementite is in the lamellar form in the __________ phase of steel.
[A].

martensitic
[B].
bainitic
[C].
pearlitic
[D].
ferritic

Answer: Option C

Explanation:

No answer description available for this question.

Read More Cementite is in the lamellar form in the __________ phase of steel.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant ‘K’ is

Question: Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant ‘K’ is
[A].

10 atm-1
[B].
105 atm-1
[C].
10 (dimensionless)
[D].
105 (dimensionless)

Answer: Option B

Explanation:

No answer description available for this question.

Read More Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant ‘K’ is
CHEMICAL ENGINEERING | Chemical Engineering Basics

Even though heat transfer co-efficients in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.

Question: Even though heat transfer co-efficients in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.
[A].

film
[B].
nucleate
[C].
transition
[D].
all modes of

Answer: Option A

Explanation:

No answer description available for this question.

Read More Even though heat transfer co-efficients in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Lithium is a useful alloying addition to aluminium, because it

Question: Lithium is a useful alloying addition to aluminium, because it
[A].

is cheap.
[B].
imparts solid solution strengthening.
[C].
lowers density and contributes to age hardening.
[D].
improves the corrosion resistance of aluminium.

Answer: Option D

Explanation:

No answer description available for this question.

Read More Lithium is a useful alloying addition to aluminium, because it

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