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a. Calculate Ea if k1 = 4.62 x 10 -7 1/Ms at 315 oC and k2...

a. Calculate Ea if k1 = 4.62 x 10 -7 1/Ms at 315 oC and k2 is 2.31 x 10 -4 1/Ms at 678 oC.

b. Based on your answer to a, what’s k at 400 oC?

16. The following 2 step mechanism has been proposed.

Step 1 : A (g) + B (g) -> X (g) + Y (g)   k1 = fast

Step 2: X (g) + C (g) -> Y (g) + Z (g) k2 = slow

a. Write the overall reaction

b. What’s the molecularity of each step and the overall reaction? (label each)

c. List any reaction intermediates, if none say none.  

d. Identify the rate determining step

e. Write the rate law for the rate determining step.

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