Chemistry

Nicole Fuller

7 November, 11:27

In the manufacture of nitric acid by the oxidation of ammonia, the first product is nitric oxide. The nitric oxide is then oxidized to nitrogen dioxide:

2 NO (g) + O2 (g) → 2 NO2 (g)

Calculate the standard reaction enthalpy for the reaction above (as written) using the following dа ta:

N2 (g) + O2 (g) → 2 NO (g) ∆H ◦ = 180.5 kJ

N2 (g) + 2 O2 (g) → 2 NO2 (g) ∆H◦ = 66.4 kJ

(A) - 128.2 kJ/mol rxn

(B) - 100.3 kJ/mol rxn

(C) - 520.2 kJ/mol rxn

(D) - 252.4 kJ/mol rxn

(E) - 690.72 kJ/mol rxn

(F) - 114.1 kJ/mol rxn