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Question

On what factors do the equilibrium position and equilibrium constant depend? Explain by giving appropriate reasons.


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Solution

  1. Equilibrium constants aren't changed if you change the concentrations of things present in the equilibrium but change with a change in temperature.
  2. The equilibrium position changes itself when equilibrium is subjected to a change.
  3. Le Chatelier's principle : According to Le Chatelier's principle, the position of equilibrium shifts in such a way as to counteract the effect of change.
    For example,
  • Change in pressure: Equilibrium constants do not change if you change the pressure of the system but the position of equilibrium may be changed if you change the pressure, according to Le-Chatelier's principle. The position of equilibrium shifts in that direction that tends to undo the change that you have made.
  • Change in temperature changes both equilibrium constant and equilibrium position.
  • Catalyst: Addition of catalyst neither changes equilibrium position nor equilibrium constant.

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