Effects of equilibrium on pressure

Question

Accepted Answer

Equilibrium affects pressure by balancing the rates of forward and reverse reactions.

Equilibrium is a state where the rates of forward and reverse reactions are equal
Pressure changes can shift the equilibrium position
Increasing pressure favors the side with fewer moles of gas
Decreasing pressure favors the side with more moles of gas
Le Chatelier's principle predicts the direction of the shift in equilibrium
For example, increasing pressure in the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) shifts the equilibrium to the side with fewer moles of gas, which is the product side
Decreasing pressure in the same reaction shifts the equilibrium to the side with more moles of gas, which is the reactant side

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