Time (s) 0 600 1200 1800 2400 3000 [(CH3)3CBr] (mol L-) 1.04 x 10 8.96 x 10- 7.16 x 10 5.99 x 10- 3.53 x 10-2 2.07 x 10-2 i) Use a graphical method to determine the order of the reaction. [5 marks] ii) Determine the rate constant k including units, using the plot you have made in part i). [5 marks] iii) Determine the half-life time (to.s) for this reaction. [5 marks]