Author name: admin

Question: A space velocity of 5 hr-1 means that
[A].

five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour.

[B].

after every 5 hours, reactor is being filled with the feed.

[C].

cent per cent conversion can be achieved in at least 5 hours.

[D].

a fixed conversion of a given batch of feed takes 5 hours.

Answer: Option A

Explanation:

No answer description available for this question.

Question: A first order irreversible reaction, A B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.
[A].

both conversion as well as concentration are same

[B].

conversion in both will be the same but concentrations will be different

[C].

both the conversion as well as concentrations will be different

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: A second order reaction of the form A + B C is called a pseudo-first order reaction, when
[A].

CA0 = CB0

[B].

CA0 > CB0

[C].

CB0 > CA0

[D].

CB0 ≥ CB0

Answer: Option D

Explanation:

No answer description available for this question.

Question: Oil is hydrogenated using nickel catalyst in a __________ reactor.
[A].

batch

[B].

slurry

[C].

fluidised bed

[D].

fixed bed

Answer: Option B

Explanation:

No answer description available for this question.

Question: A stirred tank reactor compared to tubular-flow reactor provides
[A].

more uniform operating conditions.

[B].

permits operation at the optimum temperature for a long reaction time.

[C].

higher overall selectivity for a first order consecutive reaction.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.

Question: For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.
[A].

stirred tank

[B].

tubular flow

[C].

batch

[D].

fixed bed

Answer: Option A

Explanation:

No answer description available for this question.

Question: A batch reactor is
[A].

suitable for gas-phase reactions on commercial scale.

[B].

suitable for liquid phase reactions involving small production rate.

[C].

least expensive to operate for a given rate.

[D].

most suitable for very large production rate.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Fluidised bed reactor is characterised by
[A].

uniformity of temperature.

[B].

comparatively smaller equipment.

[C].

very small pressure drop.

[D].

absence of continuous catalyst regeneration facility.

Answer: Option A

Explanation:

No answer description available for this question.

Question: A space time of 3 hours for a flow reactor means that
[A].

the time required to process one reactor volume of feed (measured at specified conditions) is 3 hours.

[B].

three reactor volumes of feed can be processed every hour.

[C].

it takes three hours to dump the entire volume of the reactor with feed.

[D].

conversion is cent per cent after three hours.

Answer: Option A

Explanation:

No answer description available for this question.

Question: A high space velocity means that a given
[A].

reaction can be accomplished with small reactor.

[B].

conversion can be obtained with a high feed rate.

[C].

both (a) and (b).

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.