help on all please, especially on E and F show work

4B The exothermic reaction of stillbene (A) to form the economically important trospophene (B) and methane (C), i.e., AB+C was carried out adiabatically and the following data recorded: The entering molar flow rate of A was 300mol/min. (a) What are the PFR and CSTR volumes necessary to achieve 40% conversion? (VPFR=72dm3, (b) Over what range of conversions would the CSTR and PFR reactor volumes be identical? (c) What is the maximum conversion that can be achieved in a 105dm3 CSTR? (f) Plot the conversion and rate of reaction as a function of PFR reactor volume up to a volume of 100dm3