H2+I2⇌2HI \mathrm {H_2 + I_2 \rightleftharpoons 2HI}H2+I2⇌2HI
N2+3H2⇌2NH3 \mathrm {N_2+3H_2 \rightleftharpoons 2NH_3}N2+3H2⇌2NH3
PCl5⇌PCl3+Cl2 \mathrm {PCl_5 \rightleftharpoons PCl_3 + Cl_2}PCl5⇌PCl3+Cl2
N2O4⇌2NO2 \mathrm {N_2O_4 \rightleftharpoons 2NO_2}N2O4⇌2NO2