1. David used a large tank reactor (V=10m3) to run the first order reaction AB, and he obtained a conversion of 87.5%. He conducted a tracer experiment for this reactor, and proposed the following flow model. (a) David checked his tank reactor and found that the impeller of his reactor is not sufficient to provide a perfect agitation. If he addressed this issue using a very powerful impeller in his reactor (e.g., perfect agitation), what will be the conversion that David can achieve? The feed conditions for reactants A were kept the same. (12 marks) (b) Comment on the conversion that David has achieved in (a) (Hint: compared to 87.5% that he has obtained in his reactor operated under non-ideal condition, and explain)