Which of the following reactions proceeds at low pressure?

For the equilibrium process $H_2O_{(l)} \rightleftharpoons H_2O_{(g)}$,what happens if the pressure is increased?

$N_{2} + 3H_{2} \rightleftharpoons 2NH_{3} + \text{heat}$. What is the effect of the increase of temperature on the equilibrium of the reaction?

Given reaction is $2 X_{(g)} + Y_{(g)} \rightleftharpoons 2 Z_{(g)} + 80 \ kcal$. Which combination of pressure and temperature gives the highest yield of $Z$ at equilibrium?

The equilibrium $SO_2Cl_{2(g)} \rightleftharpoons SO_{2(g)} + Cl_{2(g)}$ is attained in a closed vessel at $25 \, ^\circ C$. If an inert gas,$He$,is added at constant volume,which of the following statement$(s)$ is/are correct?

Explain the effect of pressure change on an equilibrium system with suitable examples.