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Question: In an ideal mixed reactor (at steady state), the
[A].

space time is equivalent to holding time for constant density systems.

[B].

composition throughout the reactor remains same.

[C].

exit stream has the same composition as the fluid within the reactor.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.

Question: With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion)
[A].

increases

[B].

decreases

[C].

remains same

[D].

increases linearly

Answer: Option A

Explanation:

No answer description available for this question.

Question: Ionic reactions occur in
[A].

solid state only

[B].

liquid state only

[C].

solutions

[D].

any state

Answer: Option C

Explanation:

No answer description available for this question.

Question: The catalyst in a second order reversible reaction increases the rate of the forward reaction
[A].

and decreases that of backward reaction.

[B].

and backward reaction equally.

[C].

only.

[D].

to a greater extent than that of the backward reaction.

Answer: Option B

Explanation:

No answer description available for this question.

Question: The catalyst in a first order chemical reaction changes the
[A].

equilibrium constant

[B].

activation energy

[C].

heat of formation of the product

[D].

heat of reaction

Answer: Option B

Explanation:

No answer description available for this question.

Question: In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants)
[A].

A

[B].

N

[C].

A+N

[D].

A-N

Answer: Option C

Explanation:

No answer description available for this question.

Question: For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single
[A].

CSTR of volume V

[B].

PFR of volume V

[C].

CSTR of volume V/X

[D].

PFR of volume V/X

Answer: Option B

Explanation:

No answer description available for this question.

Question: Half life period of decomposition of a liquid ‘A’ by irreversible first order reaction is 12 minutes. The time required for 75% conversion of ‘A’ is __________ minutes.
[A].

18

[B].

24

[C].

6

[D].

12

Answer: Option B

Explanation:

No answer description available for this question.

Question: A consecutive reaction, , is characterised by
[A].

maxima in the concentration of A.

[B].

maxima in the concentration of B.

[C].

maxima in the concentration of C.

[D].

high exothermicity.

Answer: Option B

Explanation:

No answer description available for this question.