Answer to Question #89633 in General Chemistry for MAR

Question

The combustion of ammonia by the following reaction yields nitric oxide and water

4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g)



Determine the heat of reaction (ΔHrxn) for this reaction by using the following thermochemical data:

N2 (g) + O2 (g) → 2 NO (g) ΔH = 180.6 kJ

N2 (g) + 3 H2 (g) → 2 NH3 (g) ΔH = - 91.8 kJ



2 H2 (g) + O2 (g) → 2 H2O (g) ΔH = - 483.7 kJ

Answer 1

1273.5 kJ