14) A second-order reaction has a half-life of 18 s when the initial concentration of reactant is 0.71 M.14)The rate constant for this reaction isм-15-1,A) 7.8 × 10-2B) 18C) 1.3D) 3.8 × 10-2E) 2.0 × 10-2315) Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction:15)2NO2 → 2N0 + O2In a particular experiment at 300°C, [NO2] drops from 0.0100 to 0.00650 M in 100 s. The rate ofappearance of O2 for this period isM/s.A) 1.8 × 10-5В) 3.5 х 10-5C) 3.5 x 10-3D) 7.0 × 10–3E) 7.0 × 10-5

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14) A second-order reaction has a half-life of 18 s when the initial concentration of reactant is 0.71 M. The rate constant for this reaction is , м-15-1,

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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Question

14) A second-order reaction has a half-life of 18 s when the initial concentration of reactant is 0.71 M.
14)
The rate constant for this reaction is
м-15-1,
A) 7.8 × 10-2
B) 18
C) 1.3
D) 3.8 × 10-2
E) 2.0 × 10-2
3
15) Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction:
15)
2NO2 → 2N0 + O2
In a particular experiment at 300°C, [NO2] drops from 0.0100 to 0.00650 M in 100 s. The rate of
appearance of O2 for this period is
M/s.
A) 1.8 × 10-5
В) 3.5 х 10-5
C) 3.5 x 10-3
D) 7.0 × 10–3
E) 7.0 × 10-5

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