Question

Time (s) [ClO] (M)

4.19×10⁻³ 7.81×10⁻⁶

4.91×10⁻³ 6.33×10⁻⁶

5.63×10⁻³ 5.32×10⁻⁶

6.35x10⁻³ 4.59×10⁻⁶

7.07×10⁻³ 4.03×10⁻⁶

Be sure to answer all parts. Chlorine oxide (ClO), which plays an important role in the depletion of ozone, decays rapidly according to the equation 2ClO(g) → Cl2(g) + O2(g) From the following data, determine the reaction order and calculate the rate constant of the reaction.

Reaction order: 0 1 2

Rate constant: k = × 10 1 Ms

Answer 1

Ans. #1. Order of reaction = 2 , because the graph of (1/concertation) vs time is linear- the characteristic of a second order reaction.

#2. Rate constant, k = slope = 4.0 x 10⁷ M^-1 s^-1