Le Chatelier's principle
/ləʃæˈteljeɪz/- Chemistry 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【化】勒夏忒列原理。
词源
early 20th cent.: named after Henry le Chatelier （1850-1936）， French chemist.