Chemical Reaction Engineering

Question: Autocatalytic reactions are best carried out in a
[A].

CSTR

[B].

CSTR in series

[C].

plug flow reactor

[D].

recycle reactor

Answer: Option D

Explanation:

No answer description available for this question.

Question: For a fluidised bed reactor, the most suitable/relevant model is a __________ model.
[A].

tank in series

[B].

bubbling bed

[C].

plug flow

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ is the response curve for a step input signal from a reactor.
[A].

S-curve

[B].

C-curve

[C].

I-curve

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Fluid flow in a real packed bed can be approximated as __________ model.
[A].

plug flow

[B].

dispersion

[C].

mixed flow

[D].

tank in series

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ is the controlling step in a highly temperature sensitive fluid-solid non-catalytic reaction.
[A].

Gas film diffusion

[B].

Ash diffusion

[C].

Chemical reaction

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: For the irreversible elementary first order reaction in parallel viz. , a plot of Cy Vs. Cz will give a straight line having a slope of
[A].

K2/K1

[B].

K1/K2

[C].

K1 . K2

[D].

K1 + K2

Answer: Option B

Explanation:

No answer description available for this question.

Question: For the irreversible elementary reactions in parallel viz , the rate of disappearance of ‘X’ is equal to
[A].

CA(K1+K2)

[B].

CA(K1 + K2)/2

[C].

CA . K1/2

[D].

CA . K2/2

Answer: Option A

Explanation:

No answer description available for this question.

Question: For the reaction , the rate of formation of Z is 0.2 gm mole/litre.hr. what is the rate of disappearance of X in gm mole/litre. hr ?
[A].

0.4

[B].

0.1

[C].

0.2

[D].

none ofthese

Answer: Option A

Explanation:

No answer description available for this question.

Question: For a first order chemical reaction, the rate constant
[A].

changes on changing the concentration units.

[B].

is not a function of the unit of time.

[C].

has unit of time-1.

[D].

none ofthese.

Answer: Option C

Explanation:

No answer description available for this question.

Question: A balanced chemical reaction equation conforms to the law of
[A].

conservation of mass

[B].

Avagadro’s hypothesis

[C].

gaseous volumes

[D].

none ofthese

Answer: Option A

Explanation:

No answer description available for this question.