PS13 - -3 3.37 x 10-3 2.53 x 10-3 2.02 x 10-3 1.69 x 10-3...

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1 Chemistry 2090 Kinetics Problem Set ( Do not hand in ) Answers posted Mon., May 9, 2011 Chap 14 Problems: 1, 10, 11, 14, 20, 25, 27-32, 35, 51, 55, 60, 67, 87 F5. a. Given the following: 2 NO (g) + O 2 (g) < ====== > 2 NO 2 (g) @ 380 °C, the forward reaction rate = (2.6 x 10 3 atm -2 s -1 )[NO] 2 [O 2 ] @ 380 °C, the backward reaction rate = (4.1 atm -1 s -1 )[NO 2 ] 2 What is the equilibrium constant @ 380 °C? b. The rate constant for the decomposition of NOCl is 8.0 x 10 -8 M -1 s -1 . When its initial concentration [NOCl] 0 = 0.15 M, what is the half-life of the decomposition? c. The dimerization of butadiene to 4-vinylcyclohexene is shown below; the rate data was taken at 300 °C: 2 C 4 H 6 C 8 H 12 [C 4 H 6 ] (M) t (s) 1.00 x 10 -2 5.04 x 10
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Unformatted text preview: -3 3.37 x 10-3 2.53 x 10-3 2.02 x 10-3 1.69 x 10-3 1600 3200 4800 6400 8000 1600 3200 4800 6400 8000 s i. How is the disappearance of C 4 H 8 related to the appearance of C 8 H 12 ? ii. What is the rate law for the appearance of C 8 H 12 ? You may use the graph provided above or any other means to guide you . iii. What is the rate constant, k, for the appearance of C 8 H 12 ? You may use the graph provided above or any other means to determine the value. iv. What is the rate of butadiene disappearance at 4800 s? v. The rate constant for butadiene dimerization at 250 C is 1.14 x 10-3 M-1 s-1 . What is the activation energy for the reaction, E A ?...
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