Please help with this problem hand written by ChemE expert!

Catalytic converters have made great progress over the last 60 years in decreasing the emissions from automobiles, but there is room for additional work to develop better catalyst to simultaneously remove both CO and NO from emissions.

MN Solutions is working on a new catalyst for catalytic converters. Of course, the identity of the active metal(s) is hidden in patents, but you have been asked to measure the activity of the new catalyst under different conditions. The mechanism for the reaction is given below. * denotes a vacant site on the catalyst surface. Assume all steps are elementary as written. Steps 1, 2, 4, and 5 are all quasi- equilibrated. The total number of sites is c T.

Step 1: CO + * CO* with equilibrium constant K 1

Step 2: NO + * NO* with equilibrium constant K 2

Step 3: CO* + NO* N* + CO2* with rate constant k 3

Step 4: CO 2* CO 2 + * with equilibrium constant K 4

Step 5: N* 0.5 N 2 + * with equilibrium constant K 5

1. If it is assumed that N and CO 2 are very weakly binding to the catalyst surface, what are the three MASI species?
2. Assuming the species that you identified in Problem 8 are MASI, write an expression for the rate, r, of the reaction.
3. One of the employees at MN Solutions suggests that to get fast rates that a large excess of CO should be used in the reactor. Show that this is not a good idea by finding the order of the reaction when there is an excess of CO.