N2O4⇌2NO2\mathrm{N}_{2} \mathrm{O}_{4} \rightleftharpoons 2 \mathrm{NO}_{2}N2O4⇌2NO2
2NH3⇌N2+3H22 \mathrm{NH}_{3} \rightleftharpoons \mathrm{N}_{2}+3 \mathrm{H}_{2}2NH3⇌N2+3H2
2NO+O2⇌2NO22 \mathrm{NO}+\mathrm{O}_{2} \rightleftharpoons 2 \mathrm{NO}_{2}2NO+O2⇌2NO2
N2+3H2⇌2NH3\mathrm{N}_{2}+3 \mathrm{H}_{2} \rightleftharpoons 2 \mathrm{NH}_{3}N2+3H2⇌2NH3