Question

For the chemical reaction, $3X\left(g\right)+Y\left(g\right)⟶X_{3}Y\left(g\right)$, the amount of $X_{3}Y$ at equilibrium is affected by:

• A. temperature and pressure
• B. temperature only
• C. pressure only
• D. temperature, pressure and catalyst

Answer 1

The correct option is A temperature and pressure

$3X\left(g\right)+Y\left(g\right)⟶X_{3}Y\left(g\right)$
3 1 1

$\Delta n=1-4=-3$

The reaction shows a change in mole during the course of the reaction and thus, an increase in pressure will favour forward reaction.

Also, $K_p$ changes with temperature. Catalyst has no effect on $K_p$. Thus, $P$ and $T$ influence the equilibrium concentrations.