1. Determine the rate law and the value of k for the following reaction using the data provided

2 NO+ O2---> 2 NO2 [NO]i M [O2]i M Inital Rate (M-1 s-1)

0.030 0.0055 8.55 x 10 ^-3

0.030 0.0110 1.71 x 10 ^-3

0.060 0.0055 3.42 x 10 ^-2

2. Consider the following reaction: NO + SO3---> NO2+SO2

A reaction mixture initially contains 0.86 M NO and 0.86 M S03. Determine the equiibrium pressure of NO2 if Kc for the reaction at this temperature is 0.0118.

a. 0. 78 atm

b. 0.084 atm

c. 0.012 atm

d. 0.85 atm

e. 0.048 atm

Please explain because I want to understand , thanks!

3. Consider the following reaction at equilbrium. What affect will adding a catalist to the mixture have on the system?
2 H2S+3 O2 --> 2 H2O + 2 SO2