Chemistry - Chemical Equilibrium Question with Solution | TestHub

${\mathrm{N}}_2(\mathrm{g})+3{\mathrm{H}}_2(\mathrm{g})\rightleftharpoons 2{\mathrm{NH}}_3(\mathrm{g}),\Delta \mathrm{H}=-\mathrm{Q}$ According to Le Chatelier's principle. - Exothermic reactions are favoured at low temperature. - Increase in pressure shifts the reaction in direction having lesser number of moles. Hence, the given reaction shifts forward on increasing pressure. - Increasing the concentration of reactants shifts the reaction in forward direction. So high concentration of ${\mathrm{H}}_2$ shifts reaction in forward direction.