Chemical Reaction Engineering

Question: Considering the endotheomic dissociation of CaCO3 in a closed vessel (CaCO3 CaO + CO2), the pressure of CO2 increases, if
[A].

a catalyst is added.

[B].

the temperature is increased.

[C].

an inert gas is pumped keeping the temperature constant.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: If helium is introduced in a reactor containing O2, SO2 and SO3 at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO3 (as per Le Chatlier principle)
[A].

decreases

[B].

increases

[C].

remains unaltered

[D].

changes unpredictably.

Answer: Option A

Explanation:

No answer description available for this question.

Question: On application of pressure to the equilibrium system, ice water ; which of the following phenomenon will occur ?
[A].

Water will evaporate

[B].

Equilibrium will not be attained

[C].

More ice will be formed

[D].

More water will be formed.

Answer: Option D

Explanation:

No answer description available for this question.

Question: If in the gaseous phase reaction, N2O4 2NO2, x is the part of N2O4 which dissociates, then the number of molecules at equilibrium will be
[A].

(1 + x)

[B].

(1 – x)

[C].

(1 + x)2

[D].

(1 – x)2

Answer: Option A

Explanation:

No answer description available for this question.

Question: In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffacted by pressure changes ?
[A].

2O3 3O2

[B].

N2 + O2 2NO

[C].

2NO2 N2O4

[D].

2SO2 + O2 2SO3

Answer: Option B

Explanation:

No answer description available for this question.

Question: In which of the following reactions, the equilibrium will shift to the right, if the total pressure is increased?
[A].

H2 + Cl2 2HCl

[B].

N2 + O2 2NO

[C].

N2O4 2 NO2

[D].

H2 + I2 2HI

Answer: Option B

Explanation:

No answer description available for this question.

Question: In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure ?
[A].

N2 + O2 2NO

[B].

PCl3 + Cl2 PCl5

[C].

N + 3H2 2NH3

[D].

2SO2 + O2 2SO3

Answer: Option A

Explanation:

No answer description available for this question.

Question: In flow reactors, the performance equations interrelate the rate of reaction to the
[A].

feed rate.

[B].

reactor volume,

[C].

extent of reaction.

[D].

all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Question: In a/an __________ reactor, there is exchange of heat with the surroundings with sizeable temperature variation.
[A].

adiabatic

[B].

isothermal

[C].

non-adiabatic

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Question: For a first order reaction carried out in a plug flow reactor, the space time is
[A].

[B].

[C].

[D].

Answer: Option A

Explanation:

No answer description available for this question.