Q1 (a) Give Arrhenius' mathematical expression. You should also determine each term involved and explain the meaning and usefulness of this equation in reaction kinetics. (5 marks) (b) What is the half-life (t1/2) equation for a first-order reaction whose rate constant is k? Please show this explicitly through the first-order integrate rate law [8 marks) (c) Consider the following complete combustion reaction equation. CH + O + CO + HO (i) Balance this reaction equation [3 marks] (ii) Determine the reaction rate equation for both forward and backward reactions [3 marks] (iii) Determine the equilibrium constant Keq [3 marks] (d) If the rate constant of a 2nd order (unimolecular) reaction is 0.15 L mol s1, then calculate its half-life, (t1/2) for an initial concentration of reactant A, [A] = 0.1 M. [3 marks