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The following data are for the gas phase decomposition of phosphine at 120 C. PH3(9) + 1/4 PA(9) + 3/2 H2(g) PH3), M time, s

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The following data are for the gas phase decomposition of phosphine at 120 C. PH3(9) + 1/4 PA(9) + 3/2 H2(g) PH3), M time, s 8.94x102 0 4.47x10 2.24x102 62.6 1.12x102 93.9 31.3 Hint: It is not necessary to graph these data. (1) The half life observed for this reaction is (2) Based on these data, the rate constant for this order reaction is s1

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