| 单词 | mass action |
| 释义 | > as lemmasmass action mass action n. (a) Chemistry the effect which the concentration of a reactant has on the rate of a chemical reaction; esp. in law of mass action n. the principle that the rate of a reaction at equilibrium is proportional to the concentrations or activities of the reactants. (b) the action of a mass of people. ΘΚΠ the world > action or operation > doing > [noun] > of a mass of people mass action1879 the world > matter > chemistry > chemical reactions or processes > [noun] > reaction rate > effect of reactant concentration mass action1879 1879 Jrnl. Chem. Soc. 36 581 The law of mass action formulated above was applied in the authors' ‘Etudes’ to the cases of chemical action already cited. 1891 G. M'Gowan tr. E. von Meyer Hist. Chem. 461 Berthollet..deduced precisely the opposite from his own assumption—that mass-action comes into play in chemical processes. 1902 Q. Jrnl. Econ. 17 92 Once mass action of this kind took the form of crusades, insurrections, and revolts. To-day it manifests itself in booms, panics, crazes, [etc.]. 1903 H. C. Jones Princ. Inorg. Chem. xxviii. 346 A further splitting off of sulphuric acid due to the mass action of the water. 1909 H. J. H. Fenton Outl. Chem. I. xii. 146 In studying the law of mass action we have so far confined ourselves to the consideration of the rate of change. 1970 R. Passmore & J. S. Robson Compan. Med. Stud. II. iii. 1/2 Whatever the nature of a receptor, its reaction with a drug is presumably chemical and can be described by the Law of Mass Action. 1992 Daily Express 9 Sept. 10/4 The ANC's militant mass action proponents must have decided that the blood price was worth paying. < as lemmas |
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