Reversible reactions

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The study of chemical equlibria helps to answer the questions: 'How far?' and 'In which direction?'. In other words this is part of the field of chemistry which helps us to understand whether or not a reaction tends to go and if so, how far it will go.

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Recently Asked Questions

• How can people physically show that in dynamic equilibrium particles are moving, to show that the reactions are taking place?
• My question relates to the following equilibrium reaction; 2CrO₄^2-(aq) + 2H⁺(aq) => Cr₂O₇^2-(aq) + H₂O(l) I know that the effect of adding water to the above equilibrium reaction is to shift the equilibrium position to favour the reverse reaction but I do not know how to explain the equilibrium shift using Le Chatelier's principle. Please shed some light.
• How can you reverse the reaction of bismuth(III) chloride and water? I don't understand why, when you keep reversing the reaction in a cycle, it gets progressively harder?

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Tests

• Reversible reactions (AS)

updated: 09 July 2003