Answer to Question #176427 in General Chemistry for anonymous

Question #176427

In the manufacture of nitric acid by the oxidation of ammonia, the first product is nitric oxide (NO), which is then oxidised to nitrogen dioxide (NO2). Using the standard reaction enthalpies


           N2 (g) + O2 (g) ---> 2NO (g)  ΔHo = +180.6 kJ

           N2 (g) + 2O2 (g) ---> 2NO2 (g)           ΔHo = +66.4 kJ

Calculate the ΔHo for the following reaction


2NO (g) + O2 (g) ---> 2NO2 (g)



1
Expert's answer
2021-04-01T06:00:28-0400

2× 66.4=132.8kJ



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