Question

Match the column.

Answer 1

According to Le Chatelier principle endothermic reaction proceed in forward direction on increasing temperature while the
exothermic reaction proceed in backward direction/on increasing temperature.
For the reaction, $N_2\left(g\right)+3H_2\left(g\right)\rightleftharpoons 2N{H}_3\left(g\right)$, the equilibrium shifts in the forward direction by rise in pressure or by lowering the temperature.
For the reaction, $2S{O}_2\left(g\right)+O_2\left(g\right)\rightleftharpoons 2S{O}_3\left(g\right);\Delta H=-ve$, the equilibrium shifts in the forward direction by rise in pressure or by lowering the temperature.
For the reaction, $N_2\left(g\right)+O_2\left(g\right)\rightleftharpoons 2NO\left(g\right);\Delta H=+ve$,
the equilibrium shifts in the forward direction by rise in the temperature. However it is unaffected by pressure.
For the reaction, $PC{l}_3\left(g\right)+C{l}_2\left(g\right)\rightleftharpoons PC{l}_5\left(g\right);\Delta H=+ve$, the equilibrium shifts in the forward direction by rise in pressure or by rise in the temperature.