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Le Chatelier's principle

/lə ʃæˈtɛljeɪz/
(chem) the principle that if a system in chemical equilibrium is subjected to a disturbance it tends to change in a way that opposes this disturbance
Word Origin
C19: named after H. L. Le Chatelier (1850–1936), French chemist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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