4 - Chemical Equilibrium definitions - CHEMISTRY

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Last updated 12:13 PM on 8/11/26
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4 Terms

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Closed system

One in which mass is conserved inside the system but energy can enter or leave the system freely

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Open system

One in which both energy and matter can be exchanged between the system and its surroundings

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Le Chatelier’s principle

When an external stress (change in pressure, temperature or concentration) is applied to a system in dynamic chemical equilibrium, the equilibrium point will change in such a way as to counteract the stress

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Dynamic chemical equilibrium

A reversible reaction in which the forward and the reverse reactions are taking place at the same rate and so the concentrations of reactants and products are constant