Chemical Reaction Engineering

Question: Bulk diffusion in catalyst pore __________ with increase in pressure.
[A].

increases

[B].

decreases

[C].

remains unchanged

[D].

increases exponentially

Answer: Option B

Explanation:

No answer description available for this question.

Question: Effectiveness factor (E) of a catalyst pellet is defined as, Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)
[A].

tan hT/T

[B].

tan T/T

[C].

tan hT/tan T

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.
[A].

1

[B].

3

[C].

1/3

[D].

32

Answer: Option B

Explanation:

No answer description available for this question.

Question: For a reaction of the type, , the rate of reaction (- rx) is given by
[A].

(K1+K1)CX

[B].

(K1+K2+K3)CX

[C].

K1CV – K2CX

[D].

(K1-K2)CX

Answer: Option C

Explanation:

No answer description available for this question.

Question: Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N2 + 3H2 2NH3.
[A].

increases

[B].

decreases

[C].

remains unchanged

[D].

unpredictable from the data

Answer: Option A

Explanation:

No answer description available for this question.

Question: Carrier in a catalyst increases its
[A].

surface area

[B].

activity

[C].

performance

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: __________ explains the mechanism of catalysis.
[A].

Activated complex theory

[B].

Collision theory

[C].

Thermodynamics

[D].

None of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Fractional conversion __________ for an exothermic reversible chemical reaction, when the temperature is maximum.
[A].

increases

[B].

remains unchanged

[C].

decreases

[D].

unpredictable from the data

Answer: Option C

Explanation:

No answer description available for this question.

Question: Maximum equilibrium conversion for endothermic reaction is obtained at the __________ temperature.
[A].

highest possible

[B].

lowest possible

[C].

intermediate

[D].

room

Answer: Option A

Explanation:

No answer description available for this question.

Question: A non-catalytic chemical reaction of the type is called a __________ reaction.
[A].

parallel

[B].

series

[C].

series-parallel

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.