At elevated temperatures, nitrogen dioxide decomposes to nitric oxide and molecular oxygen:

2NO₂ (g)➞ 2NO (g) + O₂ (g)

Concentration-time data for the decomposition of NO₂ at 300 C is included.

From the prepared plots given determine the order of the reaction.

How can you determine the rate constant?

What is the concentration of NO₂ at t = 20.0 min?

What is the half-life of the reaction when [NO₂ ] = 6.00 X 10^-3 M?

What is the half-life when [NO₂] = 3.00 X 10^-3 M?

How much time will it take for 25 % of NO₂ to react when [NO₂ ] = 8.00 X 10^-3 M?