Consider the following equilibrium. PCl₃(g) + Cl₂(g) PCl₅(g) ΔH = -92 kJ
The concentration of PCl₃ at equilibrium can be increased by:

Question

Consider the following equilibrium. PCl₃(g)+ Cl₂(g) PCl₅(g) ΔH = -92 kJ The concentration of PCl₃ at equilibrium can be increased by:

Quizplus · Accepted Answer

According to Le Chatelier's Principle, adding PCl5 to the system will shift the equilibrium to the left, producing more PCl3 and Cl2 to counteract the increase in PCl5 concentration. Therefore, adding PCl5 to the system will increase the concentration of PCl3 at equilibrium. The other options (decreasing temperature, adding Cl2, increasing pressure, adding a catalyst) will not have a significant effect on the equilibrium concentration of PCl3.

Consider the Following Equilibrium