Practice question · Select all that apply
Which changes shift a gaseous equilibrium toward the side with fewer gas molecules?
Hints
- Only a change that alters the partial pressures of the reacting species matters.
- An inert gas at constant volume leaves every partial pressure unchanged.
Show the answer
- C. Increasing the total pressure by reducing the volume
- D. Decreasing the volume of the container
Why
Compressing the container raises every partial pressure and the system relieves it by favouring fewer molecules. An inert gas added at constant volume changes the total pressure but no partial pressures, and a catalyst never moves the position at all.
Practise Chemical Equilibrium
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