When heated, tetrafluoroethylene dimerizes to form octafluorocyclobutane. To determine the rate of this reaction at 488 K,

Question:

When heated, tetrafluoroethylene dimerizes to form octafluorocyclobutane.

To determine the rate of this reaction at 488 K, the data in the table were collected. Analysis was done graphically, as shown below: [CF4] (M) Time (s) 0.100 0 0.080 56 0.060 150. 0.040 335 0.030 520.

(a) What is the rate law for this reaction?
(b) What is the value of the rate constant?
(c) What is the concentration of C₂F₄ after 600 s?
(d) How long will it take until the reaction is 90% complete? 1/[CF4] (L/mol) 50 40 30 20 10 0 0 100 300 Time, seconds 500 700