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

Question

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

Explanation / Answer

0.030 0.0055 8.55 x 10 ^-3

d. 0.85 atm

This is where the similarity ends, however. Sulfur is not nearly as electronegative as oxygen so that hydrogen sulfide is not nearly as polar as water. Because of this, comparatively weak intermolecular forces exist for H2S and the melting and boiling points are much lower than they are in water. Hydrogen sulfide and water boil at -60.7 oC and +100.0 oC , respectively.

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