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10. Q.11 What are the mole balances for A and B What is the rate Law
What is the combined rate law and balance

12. v =v0

13. v0 τ=

17. Question 12
The design equation for a CSTR is:
Because the reaction is elementary, the combined mole balance and rate law becomes:

19. then we substitute numerical values for our variables and calculate a conversion of:

21. Question 13.
The differential equation for a PFR with catalyst is :
Assuming that the reaction is elementary since we are not told otherwise, the reaction rate is defined as :
through stoichiometry, this becomes:

22. Substituting the reaction rate back into the differential equation gives :
which can be integrated from X=0 when W=0 to X=X when W=W :
to give :

23. Placing the known values into the equation :
Solving gives a conversion of :

26. Hint 1. What information can you obtain from the CSTR?
                                                                                         

28. What will be the conversion in the new PBR with pressure drop?
Hint 2.  How do you calculate the pressure drop parameter?

32. You would like to have the biggest pipe diameter possible because the bigger the pipe diameter,
the less the pressure drop, and thus the conversion.

33. Q. 15

39. Q16