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This page explains what is meant by an equilibrium constant, introducing equilibrium constants expressed in terms of concentrations, Kc. It assumes that you are familiar with the concept of a dynamic equilibrium, and know what is meant by the terms "homogeneous" and "heterogeneous" as applied to chemical reactions.
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www.chemguide.co.uk/physical/equilibria/kc.html
www.chemguide.co.uk/physical/equilibria/kc.html
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So if you start with all of substance A, it will break up and become B and C. Eventually, B and C will start combining to become A. Those reactions happen until they reach equilibrium. They reach equilibrium at the same point if you start with all B and C or half A and half B/C. It doesn't matter.
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www.chem4kids.com/files/react_equilib.html
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Because in the near of equilibrium reaction rates decrease dramatically.
http://answers.yahoo.com/question/index?qid=20081105190...
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___ 24. Equilibrium is reached in all reversible chemical reactions when the (1) forward reaction stops; (2) reverse reaction stops; (3) concentrations of the reactants and the products become equal; (4) rates of the opposing reactions become equal.
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chem.lapeer.org/Exams/KineticsEquil.pdf
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All chemical reactions are accompanied by a change in energy. Some reactions release energy to their surroundings (usually in the form of heat) and are called exothermic. For example, sodium and chlorine react so violently that flames can be seen as the exothermic reaction gives off heat.
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www.visionlearning.com/library/module_viewer.php?mid=54
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Why Chemical Reactions Occur? Thermochemistry ... William of Occam (1285-1349) emphasised that it is important to get to point, to strip away all of the unnecessary detail and to deal with the core of the issue at hand. Or, as William eloquently ... The reaction proceeds under thermal conditions and equilibrium is reached.
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www.meta-synthesis.com/webbook/50_why/reactions.html
www.meta-synthesis.com/webbook/50_why/reactions.html
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7. Chemical Equilibrium- A reaction is said to have reached chemical equilibrium when the rate of the forward reaction equals the rate of the back reaction. Note: Chemical equilibrium is a statement about equal rates, not equal concentrations. ... 9. Reversibility- All chemical reactions are reversible, at least in theory.
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dwb.unl.edu/Teacher/NSF/C10/C10Links/genbiol.cbs.umn.ed...
dwb.unl.edu/Teacher/NSF/C10/C10Links/genbiol.cbs.umn.edu/RWPlecturenotes/Chemrxnssp98.html
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After studying this section, you will (a) understand what is meant by a dynamic equilibrium and the way that the equilibrium position is influenced by factors such as temperature and pressure, (b) know Le Chatelier's principle and be able to apply it to chemical reactions at equilibrium, (c) understand the meaning of...
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www.hydepark.gp.school.za/resources/science/physichem/C...
www.hydepark.gp.school.za/resources/science/physichem/Chemical%20Equilibrium/Equilibrium.htm
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• All chemical reactions are theoretically reversible ... • If neither a forward nor reverse reaction is dominant, chemical equilibrium is reached...
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faculty.ucc.edu/biology-oksov/chemistry105.htm
faculty.ucc.edu/biology-oksov/chemistry105.htm
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