Nitric acid is made commercially from nitric oxide. Nitric oxide is produced by the gas-phase oxidation of ammonia. 4NH3+502 >4NO+6H2O The feed consists of 15 mol% ammonia in air at 8.2 atm and 227°C. (a) What is the total entering concentration? (b) What is the entering concentration of ammonia? (c) Set up a stoichiometric table with ammonia as your basis of calculation. (d) Express the concentration, C, for each species as functions of conversion for a constant-volume batch reactor. Express the total pressure as a func- tion of X. (e) Repeat (d) assuming the reaction is first order in NH, and half order in O₂ (1) Write the rate law in terms of molar flow rates (2) Write the combined rate law and mole balance solely in terms of conversion and rate law parameter for a batch reactor and for a flow reactor. (f) Calculate the reactor volume necessary to achieve 80% conversion in (5.8):- HNH3 +504 NO + 6H₂O Feed 15% ammonia P-8-2 atm, T=227c. 500k a)]* assume Ideal даб behavior Cro= To Po RT 8.2 atm (0.082 atm.dm²) (500K) moL.K b)] CNH₂ = 0.15 CT. = 0.15 X 0.2 = 0.03 mol/dm³ 4NH3 +502- - 4 No +6 H₂O and = 0.2 mol Idm³ = 0.2 mol/L d) NH+No+ H₂O A B C D + PNH - CNHSO R. To + = 0.03 X 0.082 X 500 1.23 at m = Pair P (100mol % -15 mol %) = 8-2 x 0.85 = 6.97 atm P = Pair (049)=6.97 x 0.79 = 5.5063 atm CR₂ = P2 5.5063 = 0.1343 mol/dm³ RT 0.082 X 500 Poz Pair (0.21)=6.47 Xo-21 = 1.4637 atm = = 0.0 357 mol/dm³ Co₁₂ = Pos 1-4637 RT 0.082 X 500 Co20357 = 1.19 C3 0.03 CN 0.1343.4.48 CNB3 0.03 S Initially NH3 A CA Batch reactor :- S - change - Cao X Remaning CA (1-x)=0.03 (1-x) O₂ B 119 CAO -125 Cao X - =0·03* No C H₂O D о Cao X о CROX N₂ I 4.48 Cao о T TC=6.67 CA 0.25 CoX C₁ = CAO XE0-03 X CAOX = 0.045 X 4.48 Co 4.48 x 0.03 B = 0.1344 Total pressure as function of X :- P₁ =CT