Chemical Engineering - Chemical Reaction Engineering

21. 

What is the order of chemical reaction , if itis found that the reaction rate doubles on doubling the concentration of B and also the reaction rate doubles when the concentrations of both A & B were doubled and quandrupled when the concentrations of both B & C were doubled ?

A. 1
B. 2
C. 3
D. 4

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

22. 

Reactions with high activation energy are

A. very temperature sensitive
B. temperature insensitive
C. always irreversible
D. always reversible

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

23. 

If n = overall order of a chemical reaction. a = initial concentration of reactant. t = time required to complete a definite fraction of the reaction. Then pick out the correct relationship.

A.
B.
C.
D. tan

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

24. 

In case of a/an __________ chemical reaction, conversion increases with the rise in temperature.

A. reversible exothermic
B. irreversible exothermic
C. irreversible endothermic
D. reversible endothermic

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

25. 

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. Let us discuss.