Quantitative Approach to Law of Mass Action

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This Demonstration illustrates the law of mass action, which is an example of Le Chatelier's principle, that if a system in chemical equilibrium is disturbed it tends to change in such a way as to counteract the disturbance.
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Contributed by: D. Meliga, L. Lavagnino and S. Z. Lavagnino (July 2020)
Open content licensed under CC BY-NC-SA
Snapshots
Details
Snapshot 1: system at the equilibrium; the initial concentration fulfils the equilibrium constant equation so there is no variation
Snapshot 2: Le Chatelier's principle: raising one reactant concentration and lowering one product concentration in the equilibrium state causes a shift toward the side of products ()
Snapshot 3: raising reactant concentrations and lowering product concentrations in the equilibrium state causes a shift toward the side of products ()
References
[1] C. H. P. Lupis, Chemical Thermodynamics of Materials, New York: North-Holland, 1983.
[2] S. Z. Lavagnino. Chemical Equilibrium [Video]. (Jun 25, 2020) www.youtube.com/watch?v=TDBQOF7M-W8&list=PLswwssc6Q2yac7AM3x5UjmesLQaye-xMP&index=3.
Permanent Citation