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The first reaction in the Ostwald process for the production of nitric acid involves the combustion...

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Chemistry

The first reaction in the Ostwald process for the production ofnitric acid involves the combustion of ammonia
4NH3(g)+5O2(g)=4NO(g)+6H2O(g)

a) Estimate ΔH^o (in kJ) for this reaction using average bondenergies.

b) Calculate ΔH^o (in kJ) for this reaction using standard heatsof formation.

c) Briefly explain why the value for ΔH^o, calculated usingaverage bond energies, is only considered to be an estimate of thestandard enthalpy change for the reaction

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