$H_{2(g)} + I_{2(g)} \rightleftharpoons 2HI_{(g)}$. In this reaction,when pressure increases,the reaction direction:

For the chemical reaction $3X_{(g)} + Y_{(g)} \rightleftharpoons X_3Y_{(g)}$,the amount of $X_3Y_{(g)}$ at equilibrium is affected by:

At $25 \ ^oC$,the reaction $SO_2Cl_2(g) \rightleftharpoons SO_2(g) + Cl_2(g)$ is in equilibrium in a closed vessel. If an inert gas,$He$,is added to this system at constant volume,which of the following statements is true?

In a reversible reaction,a catalyst:

In which reaction will an increase in the volume of the container favour the formation of products?

For the reaction $PCl_{5(g)} \rightleftharpoons PCl_{3(g)} + Cl_{2(g)}$,at constant temperature,the reaction proceeds in the forward direction by: