One of the inlet streams to the reactor contains 95% nitrogen and the balance helium, on a molar basis, and flows at a rate of 200 lbmol/hr. a second stream of pure hydrogen (density = 0.08 lbm/ft3) enters the reactor at a rate of 80,000 ft3/hr. a single stream leaves the reactor. if all of the nitrogen is converted in the reaction, what is the molar flow rate of hydrogen in the exiting stream?