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

The given reaction will be exothermic in nature due to the formation of three X - Y bonds from the gaseous atoms. The reaction is also accompanied with the decrease in the gaseous species (i.e., $△n$ is negative).
Hence, the reaction will be affected by both temperature and pressure. The use of catalyst does not affect the equilibrium concentrations of the species in the chemical reaction.