3. The bromination of meta-xylene at 17C is carried out by introducing small quantities of iodine and bromine into pure liquid xylene. The iodine catalyses the reaction. The concentrations of xylene and catalyst remain essentially unchanged during the reaction, and it may be assumed that the rate expression is of the form, ...Eq-3a KC Br 2 where, k is a pseudo rate constant that will depend on the iodine and xylene concentrations. The kinetic data is given in Table Q3a, (a) (b) (c) rate= Table Q3a. Kinetic data Time, t (min) 0 8 12 30 63 C (mole/lit) Br2 0.334 0.226 0.191 0.105 0.048 Apply the differential method and calculate a set of data, ready to plot, for the determination of the reaction order and rate constant. Plot (with appropriate axis captions and units) the data calculated in section (a) on graph paper. Determine the order of the reaction and the rate constant from the graph plottedin section (b).

The bromination of meta-xylene at 17C is carried out by introducing small quantities of iodine and bromine into pure liquid xylene. The iodine catalyses the reaction. The concentrations of xylene and catalyst remain essentially unchanged during the reaction, and it may be assumed that the rate expression is of the form, rate=kCBr2w where, k is a pseudo rate constant that will depend on the iodine and xylene concentrations. The kinetic data is given in Table Q3a, Table Q3a. Kinetic data (a) Apply the differential method and calculate a set of data, ready to plot, for the determination of the reaction order and rate constant. (b) Plot (with appropriate axis captions and units) the data calculated in section (a) on graph paper. (c) Determine the order of the reaction and the rate constant from the graph plottedin section (b)