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

question 104

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 some Cl₂(g) is added at constant volume and temperature, the ratio of the partial pressure of PCl₅ to the partial pressure of PCl₃ will

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

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