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A principle stating that if a constraint (such as a change in pressure, temperature, or concentration of a reactant) is applied to a system in equilibrium, the equilibrium will shift so as to tend to counteract the effect of the constraint.
- ‘Today's students’ texts generally mention Le Chatelier's principle, but tend to play down its significance.’
- ‘Only the heat of solution at saturation is relevant when applying Le Chatelier's principle to explain temperature effects on solubility.’
- ‘Let's look at what Le Chatelier's principle teaches us about how equilibrium reactions can be disturbed and how and why they respond to disturbances.’
- ‘This is the first report demonstrating that the Le Chatelier's principle applies to the reaction of biopolymers against equilibrium disturbances such as osmotic stress.’
- ‘The three ways that Le Chatelier's principle says you can affect the outcome of the equilibrium are as follows.’
Early 20th century: named after Henri le Chatelier (1850–1936), French chemist.
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