1.
硝酸生产中, \(\rm{500 ℃}\)时,\(\rm{NH_{3}}\)和\(\rm{O_{2}}\)可能发生如下反应: \(\rm{① 4NH_{3} (g) + 5O_{2} (g)}\)
\(\rm{4NO (g) + 6H_{2}O (g)}\) \(\rm{\triangle }\)
\(\rm{H}\) \(\rm{= -9072kJ·mol^{-1}}\)
\(\rm{K}\)\(\rm{=1.1×10^{26}}\)
\(\rm{② 4NH_{3} (g) + 4O_{2} (g)}\) \(\rm{2N_{2}O (g) + 6H_{2}O (g) \triangle }\)\(\rm{H}\)\(\rm{=-1104.9kJ·mol^{-1}}\) \(\rm{K}\)\(\rm{=4.4×10^{28}}\)
\(\rm{③ 4NH_{3} (g) + 3O_{2} (g)}\) \(\rm{2N_{2} (g) + 6H_{2}O (g) \triangle }\)\(\rm{H}\)\(\rm{=-1269.02kJ·mol^{-1}}\) \(\rm{K}\)\(\rm{=7.1×10^{34}}\)
其中,\(\rm{②}\)、\(\rm{③}\)是副反应。若要减少副反应,提高单位时间内\(\rm{NO}\)的产率,最合理的措施是\(\rm{(}\) \(\rm{)}\)