The gas phase reaction (2AB) has been studied in an isothermal (200C) constant-pressure batch reactor. The reaction is first-order in reactant concentration, when the reactor is charged with pure A. If the half-life of the reaction is 30min, (a) What is the reaction half-life in a constant volume reactor? (b) Calculate the space time needed for 90% conversion in a PFR with the same operating temperature, isobaric reactor operation, and feed conditions (c) Repeat Part (b) for a CSTR under similar conditions