Question

For the chemical reaction:
$3X\left(g\right)+Y\left(g\right)\rightleftharpoons X_{3}Y\left(g\right)$, 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

Both temperature and pressure will change the equilibrium amount of $X_{3}Y\left(g\right)$. Temperature changes the value of the equilibrium constant itself. Pressure changes the equilibrium - moving in a direction to undo the change according to Le Chatelier's principle since $\Delta n_g\ne 0$.