5. You studied the chemical reaction, 2NO2(g) → 2NO(g) + O2(g), at 25°C by monitoring the concentration of NO2(g) as a function of time and constructed the following graph. y=0.5408x+125.0 R2=0.998- Time (s) What is the rate constant for this reaction at 25°C? Include the proper units.

Chlorine oxide (CIO), which plays an important role in the depletion of ozone, decays rapidly according to the equation 2CIO(g) →→→ Cl₂(g) + O₂(g) - From the following data, determine the reaction order and calculate the rate constant of the reaction. Time (s) [CIO] (M) 2.91 x 103 8.11 × 10-6 3.64 x 10-3 5.77 × 10-6 4.37x103 4.48 x 10-6 5.10 x 10 3 3.66 x 10-6 5.83 x 10-3 3.09 x 10-6 Reaction order: O O 1 2 Rate constant: k = x 10 Ms (Enter your answer in scientific notation.)

For the reaction AB(g) —>A(g) + B(g) the rate law is determined to be rate =k[AB]^2 and k=0.255 L/mol-min. If the initial concentration of AB is 1.00M, how long will it take for the concentration of AB to fall to 0.40M?

The isomerization of cyclopropane, C3H6, is believed to occur by the mechanism shown in the equations above. Here  C3H6* is an excited cyclopropane molecule. At low pressure, Step 1 is much slower than Step 2. Derive the rate law for this mechanism at low pressure?