In an experiment, in which the initial concentration of O2 was much greater than that of...

 

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In an experiment, in which the initial concentration of O2 was much greater than that of the ethyl radical, the relative concentration of ethyl radicals was determined by mass spectrometry. From the data in the Table below, confirm that the kinetics of the reaction are first order and calculate the rate constant give that the flow rate is 20 cm s. O2 injector position / cm C:H7 signal (arbitrary) 3 5 7 10 12 15 6.14 3.95 2.53 1.25 0.7 0.40 In an experiment, in which the initial concentration of O2 was much greater than that of the ethyl radical, the relative concentration of ethyl radicals was determined by mass spectrometry. From the data in the Table below, confirm that the kinetics of the reaction are first order and calculate the rate constant give that the flow rate is 20 cm s. O2 injector position / cm C:H7 signal (arbitrary) 3 5 7 10 12 15 6.14 3.95 2.53 1.25 0.7 0.40