Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they.

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Presentation transcript:

Chemical Reaction Engineering (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place. Lecture 7

Lecture 7 - Thursday 1/27/2011 2

3

Some hints: 1. Group unknown parameters/values on the same side of the equation example: [unknowns] = [knowns] 2. Look for a Case 1 and a Case 2 (usually two data points) to make intermediate calculations 3. Take ratios of Case 1 and Case 2 to cancel as many unknowns as possible 4. Carry all symbols to the end of the manipulation before evaluating, UNLESS THEY ARE ZERO 4

5 Knowns: Intermediate Conversion, X 1, K C, and W 1 = W 2 Unknowns: F A0, W 1, C A0 P5-17 B California Professional Exam Problem A B

6

7

8 Cancel unknowns F A0, k and C A0 Substitute X 1 = 0.55 and K C = 5.8

9 Part 2

10 Substitute for F A1 and cancel F A0, C A0, k

11 One equation and one unknown Solving for

Mole Balance Rate Laws Stoichiometry Isothermal Design Heat Effects 12

End of Lecture 7 13