The equilibrium which remains unaffected by a change in pressure is:

Consider the reaction equilibrium,$2SO_{2(g)} + O_{2(g)} \rightleftharpoons 2SO_{3(g)}$; $\Delta H^\circ = -198 \ kJ$. On the basis of Le Chatelier's principle,the condition favourable for the forward reaction is

Higher yield of $NO$ in $N_{2(g)} + O_{2(g)} \rightleftharpoons 2 NO_{(g)}$ can be obtained at [ $\Delta H$ of the reaction $= +180.7 \ kJ \ mol^{-1}$ ]
$A.$ Higher temperature
$B.$ Lower temperature
$C.$ Higher concentration of $N_2$
$D.$ Higher concentration of $O_2$
Choose the correct answer from the options given below:

The gaseous reaction $A(g) + B(g) \rightleftharpoons 2C(g) + D(g) + Q$ is most favoured at

The dissociation of phosgene,which occurs according to the reaction $COCl_{2(g)} \rightleftharpoons CO_{(g)} + Cl_{2(g)}$,is an endothermic process. Which of the following will increase the degree of dissociation of $COCl_2$?

State the optimum pressure and temperature for the production of ammonia by the Haber process.