For the decomposition of dinitrogen pentoxide in carbon tetrachloride solution at 30 °C 2 N2054 NO2 + 02 the following data have been obtained: (N205), M 1.13 0.680 0.409 0.246 time, min 124 248 372 The average rate of disappearance of N20s over the time period from t 0 min to t 124 min is min. For the decomposition of nitrosyl bromide at 10 °C 2 NOBR2 NO + Br2 the following data have been obtained: (NOBr), M 8.26x10 2 12.0 5.40x10 2 0.400 0.137 time, s 6.00 18.0 The average rate of disappearance of NOBR over the time period from t = 6.00 s to t = 12.0 s is Ms1

For the decomposition of dinitrogen pentoxide in carbon tetrachloride solution at 30 °C 2 N2054 NO2 + 02 the following data have been obtained: (N205), M 1.13 0.680 0.409 0.246 time, min 124 248 372 The average rate of disappearance of N20s over the time period from t 0 min to t 124 min is min. For the decomposition of nitrosyl bromide at 10 °C 2 NOBR2 NO + Br2 the following data have been obtained: (NOBr), M 8.26x10 2 12.0 5.40x10 2 0.400 0.137 time, s 6.00 18.0 The average rate of disappearance of NOBR over the time period from t = 6.00 s to t = 12.0 s is Ms1

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

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The following data are for the gas phase decomposition of dimethyl ether at 500 °C.CH3OCH3(g) CH4(g) + H2(g) + CO(g) [ CH3OCH3 ], M 0.101 5.05×10-2 2.53×10-2 1.27×10-2 time, min 0 20.0 40.0 60.0 Hint: It is not necessary to graph these data.(1)The half life observed for this reaction is min .(2)Based on these data, the rate constant for this order reaction is min -1.
For the gas phase decomposition of hydrogen peroxide at 400 °C 2 H2O2 2 H2O + O2 the following data have been obtained: [H,O2], M 9.35x10-2 3.54x10-2 2.18×10-2 1.56x10-2 time, s 27.0 54.0 81.0 The average rate of disappearance of H,O2 over the time period from t = 27.0 s to t = 54.0 s is |Ms-!.
For the decomposition of dinitrogen pentoxide in carbon tetrachloride solution at 30 °C 2 N₂O5 → 4NO2 + O2 the following data have been obtained: [N2O5], M 0.594 0.329 0.182 0.101 time, min 0 144 288 432 The average rate of disappearance of N₂O5 over the time period from t = 0 min to t = 144 min is M/min
For the gas phase decomposition of phosphine at 120 °C 4 PH3 (9) → P4 (9)+ 6 H₂ (9) the following data have been obtained: [PH3], M time, s 0 The average rate of disappearance of PH3 over the time period from t = 0s to t = 23.0 s is 0.0644 0.0426 0.0281 0.0186 23.0 46.0 69.0 M/s.
For the gas phase decomposition of nitrogen dioxide at 383 °C2 NO2 -------> 2 NO + O2the following data have been obtained: [NO2], M 0.423 0.178 0.113 7.61x10-2 time, s 0 6.00 12.0 18.0 The average rate of disappearance of NO2 over the time period from t = 6.00 s to t = 12.0 s is ________ M s-1.
or the decomposition of nitrous oxide at 565 °C2 N2O2 N2 + O2the following data have been obtained: [N2O], M 1.48 0.463 0.274 0.195 time, s 0 22.5 45.0 67.5 The average rate of disappearance of N2O over the time period from t = 22.5 s to t = 45.0 s is M s-1.
For the gas phase decomposition of nitrosyl chloride at 400 K 2 NOCI→2 NO + Cl, the average rate of disappearance of NOCI over the time period from t = 0 s to t = 42480 s is found to be 8.69×107 M s1. The average rate of formation of Cl, over the same time period is M s1
For the decomposition of nitrosyl bromide at 10 °C 2 NOBR 2 NO + Br2 the average rate of disappearance of NOBR over the time period from t = 0 s to t = 34 s is found to be 7.53x10 4 M s1. The average rate of formation of Br, over the same time period is Ms-1.
For the gas phase decomposition of dinitrogen pentoxide at 335 K2 N2O54 NO2 + O2the following data have been obtained: [N2O5], M 0.191 8.92×10-2 4.17×10-2 1.95×10-2 time, s 0 162 324 486 The average rate of disappearance of N2O5 over the time period from t = 324 s to t = 486 s is M s-1.
In a study of the gas phase decomposition of nitrogen dioxide at 383 °C NO2(9)NO(g) +½ O2(g) the following data were obtained: NO2], M seconds 0.436 0.218 0.109 5.45x10-2 4.78 14.3 33.4 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 0.436 M is ]s and when the starting concentration is 0.218 M is (2) The average A(1/[NO2]) / At from t= 0 s to t= 4.78 s is The average A(1/[NO,]) / At from t= 4.78 s to t = 14.3 s is (3) Based on these data, the rate constant for this v order reaction is
In a study of the decomposition of hydrogen iodide on a gold surface at 150 °CHI(g)½ H2(g) + ½ I2(g)the following data were obtained: [HI], M 0.573 0.287 0.144 7.20×10-2 seconds 0 520 781 912 Hint: It is not necessary to graph these data.(1)The observed half life for this reaction when the starting concentration is 0.573 M is s and when the starting concentration is 0.287 M is s.(2)The average rate of disappearance of HI from t = 0 s to t = 520 s is M s-1.(3)The average rate of disappearance of HI from t = 520 s to t = 781 s is M s-1.(4)Based on these data, the rate constant for this _______zerofirstsecond order reaction is M s-1.
In a study of the gas phase decomposition of hydrogen iodide at 700 K HI(g)- →½ H2(g) + ½ I2(g) the following data were obtained: [HI], M seconds 1.48 0.740 0.370 0.185 750 2.25x103 5.25x103 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 1.48 M is 750 s and when the starting concentration is 0.740 M is 1500 S. (2) The average A(1/[HI]) / At from t = 0 s to t = 750 s is M-1 s-1. The average A(1/[HI]) / At from t 750 s to t = 2.25×103 s is M-1 s-1. (3) Based on these data, the rate constant for this 0 order reaction is M-1 s-1.