Chapter 10: Catalysis and Catalytic Reactors

CO/NO Problem

1)

Mechanism

Surface Reaction Limits

 

Which of the following is false:

A:  
B:
C:
D:
E:

Go To Solution #1

 
































































2)

Which of the following rate laws is correct

A

B

C

D

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3) 
 

What can you tell from the above figure?

  1. Reaction is irreversible.

  2. N2 is weakly adsorbed.

  3. NO is weakly adsorbed.

  4. Reaction is at equilibrium.

  5. None of the above.

Go To Solution #3






























































 

4) 

                                        

Which of the following are true?

  1. Reaction is irreversible.

  2. CO2 is weakly adsorbed.

  3. Reaction is at equilibrium.

  4. CO is weakly adsorbed.

  5. NO is weakly adsorbed.

  Go To Solution #4
































































5) 

For a fixed concentration of NO which of the following curves describes the rate law for the case when PNO is very very small? 

A B
C D

E

      Go To Solution #5        


 

 

 

 

 

 

Solution #1

A is True
    

Similarly,

B is True

D is True

     But,

 E is True




C is false

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Problem #2

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Solution #2

                      

The rate law is

and

Substituting for

     in the rate law


we obtain




 Ans:  D

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Problem #3

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Solution #3

Rate law suggests

Ans: B, N2 weakly adsorbed

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Problem #4

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Solution #4

1)      Reaction is irreversible.
2)      CO2 is weakly adsorbed.


 1 and 2 are true, all others are false.

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Problem #5

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Solution #5

Low Partial Pressure CO

                                        

High Partial Pressure CO
Combining
Ans: D


Differentiating the rate law in with respect PCO to find the maximum
Solving

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