The isothermal operation of a PFR (gas phase) at 830 K with no pressure drop, is used to conduct the following reaction: A H +P k = 8.13x10'e(-19860/T)s-1 If a feed of pure A enters at 7 atm and at a flow rate of 0.2128 ft3/s, thru a pipe with a cross-sectional area of 0.023ft2, find the following to achieve 80% conversion: a. Rate equation in terms of initial concentration and conversion where - ra = kCA b. Space time, t (hint: start with design variable) =