Chemical Engineering - Chemical Reaction Engineering

31. 

The order of the chemical reaction, , whose rate equation is given as -rA = KCA2. CB is

A. 0
B. 1
C. 2
D. 3

Answer: Option D

Explanation:

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32. 

What is the dispersion number for a plug flow reactor ?

A. 0
B.
C. 1
D. -1

Answer: Option A

Explanation:

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33. 

The decomposition of A into B is represented by the exothermic reaction, A 2B. To achieve maximum decomposition, it is desirable to carry out the reaction.

A. at high P and high T.
B. at low P and high T.
C. at low P and low T.
D. at high P and low T.

Answer: Option C

Explanation:

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34. 

The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between

A. 2-5%
B. 7-10%
C. 12-15%
D. 20-25%

Answer: Option B

Explanation:

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35. 

If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to

A. the intrinsic activation energy E.
B. (E + ED) where ED is activation due to diffusion.
C. (E + ED)/2
D. ED/2

Answer: Option D

Explanation:

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