Changes in Concentration

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Changes in Concentration

Postby CristinaMorales1F » Sat Mar 16, 2019 7:29 pm

When the concentration of the products or reactants is decreased, how do you know which way the reaction will proceed?

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Re: Changes in Concentration

Postby Chem_Mod » Sat Mar 16, 2019 7:32 pm

Le Chatelier's Principle states that the reaction will lean toward the side that opposes the change that has just occurred. For example, if you increase products then the reaction will lean to the left and products will turn into reactants, decreasing products. If you decrease products, the reaction will lean to the right, turning reactants into products.

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Re: Changes in Concentration

Postby Timothy_Yueh_4L » Sat Mar 16, 2019 7:45 pm

When concentration goes up on one side it means that that particular side if being made therefore the reaction is proceeding in that direction. The reverse is true when a side's concentration is decreasing meaning that the reaction is proceeding to the opposite side. At the same time the reaction could proceed in both directions in reversible reactions. To answer if a reaction is proceeding in a particular direction depends on a lot more information, i.e. equilibrium constant, changes in conditions (temperature and pressure).

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