(b)承題(a)，為使水箱能恰在3小時排乾,則門閥須換裝為水泵,試求水泵須提供水頭 EP若干m?

8. A PFR operating isothermally at 773 K is used to conduct the following elementary reaction: A →＞ B+ C. If a feed of pure A enters at 5 atm and at a flow rate of 0.193 f'/s, what length of pipe with a cross-sectional area of 0.0388 f is necessary for the reaction to achieve 90% conversion? Data: & = 7.80 x 10' exp[-19,200/T] sl.