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Unformatted text preview: a and A from three pairs of rate constants, and then average the results. Say which method you use). Temperature °C Rate constant (L/mol.sec) 195.0 2.041 x 10-7 215.0 8.891 x 10-7 235.0 3.462 x 10-6 255.0 1.214 x 10-5 2) The compound azomethane decomposes at 300°C to form nitrogen and ethane: CH 3-N=N-CH 3 (g) –––––––> N 2 (g) + C 2 H 6 (g) This reaction was followed by monitoring the total pressure (P tot in mm of mercury) of the vessel in which the reaction was occurring. At t=0 there is only azomethane present. The following data were obtained: time (seconds) P tot (mm Hg) 0.00 284 100.0 348 150.0 375 200.0 398 250.0 418 300.0 436 Determine the order of the reaction with respect to the azomethane, i.e. is it zero order, first order, or second order? Determine the rate constant for the reaction at 300°C, and then calculate what the total pressure in the vessel was at 50.00 seconds after the start of the reaction....
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- Spring '07
- Reaction, room temperature, Rate equation, rate constants, Temperature °C Rate