Nitrogen and Hydrogen are fed at a 1:3 molar ratio to an ammonia synthesis reactor operating at T = 526,85 C and P = 100 atm, where the following reaction takes place: N2-3H2 --> 2NH3 25% of the N2 fed is converted to ammonia and the reactor produces 1000 lbmol/hour of NH3. The reactor operates at steady state. Calculate the volumetric gas: feed rate to the reactor (ft^3/hour), at the reactor temperature and pressure.