A system at equilibrium consisting of $N_2(g)$, $O_2(g)$ and $NO(g)$ in a sealed vessel at constant temperature is subjected to a sudden increase in pressure. According to Le Chatelier's principle, which of the following is most likely to occur?

For the reaction,

${\rm{PC}}{{\rm{l}}_3}\left( {\rm{g}} \right) + {\rm{C}}{{\rm{l}}_2}\left( {\rm{g}} \right)\;\leftrightharpoons\;{\rm{PC}}{{\rm{l}}_5}\left( {\rm{g}} \right)$ the position of equilibrium can be shifted to the right by

For the exothermic reaction $A(g) + B(g) \rightleftharpoons C(g) + ext{heat}$, increasing the temperature will:

Which of the following equilibria will shift to right side on increasing the temperature

The Haber's process for the manufacture of ammonia is usually carried out at about $500^\circ C$. If a temperature of about $250^\circ C$ was used instead of $500^\circ C$:

${{\rm{N}}_2} + 3{{\rm{H}}_2}\leftrightharpoons2{\rm{N}}{{\rm{H}}_3} + {\rm{heat}}$ What is the effect of the increase of temperature on the equilibrium of the reaction?

Consider the reaction equilibrium

$2{\rm{S}}{{\rm{O}}_2}\left( {\rm{g}} \right) + {{\rm{O}}_2}\left( {\rm{g}} \right)\;\leftrightharpoons\;2{\rm{S}}{{\rm{O}}_3}\left( {\rm{g}} \right),\;\;\Delta H{\rm{^\circ }} = - 198\;\;{\rm{kJ}}$

On the basis of Le-Chatelier’s principle, the condition favourable for the forward reaction is

For ${{\rm{H}}_2} + {{\rm{I}}_2}\leftrightharpoons2{\rm{HI}},$ at equilibrium some ${{\rm{I}}_2}$ is added. What happens to the equilibrium?

The exothermic formation of ${\rm{Cl}}{{\rm{F}}_3}$ is represented by the equation

${\rm{C}}{{\rm{l}}_2}\left( {\rm{g}} \right) + 3{{\rm{F}}_2}\left( {\rm{g}} \right)\leftrightharpoons2{\rm{Cl}}{{\rm{F}}_3}\left( {\rm{g}} \right);$

$\Delta H = - 329\,{\rm{kJ}}$

Which of the following will increase the quantity of ${\rm{Cl}}{{\rm{F}}_3}$ in an equilibrium mixture of ${\rm{C}}{{\rm{l}}_2},{{\rm{F}}_2}{\rm{and Cl}}{{\rm{F}}_3}$?

Which of the following factors will favour the reverse reaction in a chemical equilibrium?

Le-Chatelier principle is applicable only to a