Industrial production of nitric acid, which is used in many products including fertilizers and explosives, approaches10 billion kgper year worldwide. The first step in its production is the exothermic oxidation of ammonia, represented by the following equation.4 NH3(g) + 5 O2(g)→4 NO(g) + 6 H2O(g)ΔH⁰rxn=−902.0 kJIf this reaction is carried out using7.007✕103g NH3as the limiting reactant, what is the change in enthalpy?kJ
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