Question

Diazobenzenechloride (A) decomposes in solution to chlorobenzene and nitrogen (gas). One litre of solution containing 150 g of A is allowed to react at 60 °C. The cumulative volume of N2 (gas) collected at 1 bar and 60 °C as a function of time is given in the following table Q7. Time/min 2 34 5 6 7 Vol of 0 N litre 1.66 3.15449 5.71 6.8 7.82 8.74 a) Calculate the concentration of A at each time, and hence calculate the rate of reaction by a difference method for each interval. b) What reaction order fits the data? c) What is the value of the rate constant for the reaction order obtained in (b)?

Answer 1

-.mel.아. volum l Ciit) 1o7 n JO 2 I male STP bar RY'n' RT.--G Fw. Os@("Р, : P. om R-um 2. ナ 333x 22/T.2 23 k v, 221.4따 - 60°- 333k Cs Scanned with CamScanner

1.66 293-0.06 333 x 21.y 1-66 り2.- 3.15x 223 353x22 'y 4.49 333 x 2.1 S. 지メ223 333 x22y 333x 22. , 82. 333 x22. 8.7y 333 x 22.y 1.01 0.7ss 0.706 0 862 O.S /b 0.208 0.24 0.286 o 319 o 784 O-751 CSI Scanned with CamScanner

change tlonüunhnhr) --( 101-1.07) E (0.906 0-2 3-2 = 0.044 Mn, in 0 821-0 0.033 MM) uan 2.3D -2-30.3 1 0.0.9 min t 22 095丁 Scanned with CamScanner CS