Question

1. Use collision theory to calculate the preexponential factor and the rate constant for the reaction at 298 K. Compare your answer to the experimental result of A = 2x10¹¹ L mol^-1 s^-1.

3.13 The reaction F + HH HF is the rate-limiting elementary step in the overall reaction H2 + F2 → 2 HF. This latter process is the key reaction in the HF chemical laser. The reaction proceeds through a transition state: Suppose that the activated complex is linear. Some properties of the reac- tants and the activated complex are given in Table 3.2. The threshold energy is estimated to be e- 6.6 kJ mol-1 Properties in the F H2 Reaction (Problem 3.13) TABLE 3.2 σ (10-19 m 2) I (10-47 kg m2) 2.7 0.46 13.19 7.43 12.02 v (1013 s-1) 1.19 1.19 4 4 Electronic degeneracy

Answer 1

fall toィ 万R 62 3x1 R8 314 T242 (n +G3": 23, 414 x 16-38 12-14メ8-314 x278m 2x 3.60-4 ス275x㎡t· RT 15 1.137x10 =