Which System at Equilibrium Shifts Right

question 192

Multiple Choice

Which system at equilibrium shifts right ?
I. Increasing the pressure by compression for:
H₂ (g) + I₂ (g) 2 HI (g)
II. Increasing the pressure by compression for:
PCl 3 (g) + Cl₂ (g) PCl₅ (g)
III. Increasing the pressure by addition of Argon, an inert gas:
N₂(g) + 3 H₂ (g) 2 NH₃(g)

• A) I only
• B) II only
• C) I and II
• D) I and III
• E) All of these

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