(a) Discuss the performance of reactors in series of four reactors and justify your analysis using one specific example. (b) Calculate the concentrations of reactant and product for time intervals of 10 minutes for the reaction given in (4.1) and hence plot graphs of concentration versus time to observe the behaviour of the system for the reactants and products. Draw conclusions and hence calculate the maximum concentration and time at which it occurs for initial concentration of 30 moles and k values of 0.001 and 0.0001 respectively. (12 marks) B-D-L (4.1)