Le Chatelier’s Principle Flashcards

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What does Le Chatelier's Principle state?

When a system at equilibrium is changed, the equilibrium shifts to oppose the change.

For a reversible reaction in a closed system that has reached equilibrium.

It shifts to the products side to use up the extra reactant.

It shifts to the reactants side to use up the extra product.

It shifts to the side with fewer gas molecules.

It shifts to the side with more gas molecules.

The equilibrium shifts in the endothermic direction to absorb heat.

The equilibrium shifts in the exothermic direction to release heat.

It lowers the product yield because the equilibrium shifts to the reactants.

No. They speed up both forward and reverse reactions equally, so the position is unchanged.

Only equilibria involving gases, and only if the number of gas molecules is different on each side.

Choose conditions that shift equilibrium to the desired side, e.g. higher pressure if products have fewer gas molecules.