Consider the Following System at Equilibrium at 25°C:PCl₃(g) + Cl₂(g)

question 109

Multiple Choice

Consider the following system at equilibrium at 25°C:PCl₃(g) + Cl₂(g) PCl₅(g)
for which ΔH° = -92.5 kJ at 25°C.
-When the volume is decreased at constant temperature, the ratio of the partial pressure of PCl₅ to the partial pressure of PCl₃ will

• A) It is impossible to tell without more information.
• B) decrease.
• C) stay the same.
• D) increase.

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