Ammonia is oxidized in a well-insulated continuous reactor: 4 NH₃ (g) + 5 O₂ (g) ? 4 NO (g) + 6 H₂O (v): ?H?_? = ? 904.7 kJ/mol

The feed stream enters at 200?C and the products leave at temperature T _out?(?C). The inlet?outlet enthalpy table for the reactor appears as follows:

(a) Draw and label a process flowchart and calculate the molar amounts of the product stream components and the extent of reaction, ? (mol/s). Fill in the values of n₃, n₄, and n₅ on the enthalpy table.

(b) The energy balance for this reactor reduces to ?H ? 0. Summarize the assumptions that must be made to obtain this result.

(c) Calculate the values of H₁ and H₂ and write expressions for H₃, H₄, and H₅ in terms of the outlet temperature. T _out Then calculate T _out from the energy balance, using either a spreadsheet or a programmable calculator.?

(d) A design engineer obtained a preliminary estimate of the reactor outlet temperature using only the first terms of the heat capacity formulas in Table B.2. [For example, (C_p) NH₃ ? 0.03515 kJ / (mol??C).j what value did she calculate? Taking the result of part (c) to be correct, determine the percentage error in T _out that results from using the one-term heat capacity formulas.

(e) The preliminary estimate of T01 was mistakenly used as the basis of the design and construction of the reactor. Was this a dangerous error from the standpoint of reactor safety or did it in fact lower the hazard potential? Explain.

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References: NH3(g), O₂(g), NO(g), H₂O(v) ai 25°C. I atm Ĥin Ĥout Substance (mol/s) (kJ/mol) (kJ/mol) NH3(g) O₂(g) NO(g) H₂O(v) 4.00 6.00 Ĥ₁ Ĥ₂ nout (mol/s) (mol/s) n3 na ng Ĥ₂ Ĥ₁ Ĥ5