英语词汇“activation energy”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

activation energy n. Chemistry the minimum energy that must be supplied to atoms or molecules in order for them to undergo a chemical reaction or other process; spec. the energy required for the species involved in a reaction to form a loosely-bound intermediate or transition state which can then break up to give the reaction products.

ΚΠ

1919 Jrnl. Chem. Soc. 115 185 The action of a catalyst is to be ascribed to the substitution of relatively small energy terms..in place of true critical energies of activation or dissociation.]

1924 Proc. Royal Soc. A. 105 662 After a well-marked limited of λ = 2820 representing an activation energy of 101,000 calories per gm. mol., continuous bands appear [in the spectrum of naphthalene].

1983 G. C. Hill & J. S. Holman Chem. in Context (ed. 2) xviii. 274 Since the activation energy of the catalysed reaction is lower, the reaction rate is faster.

1998 Metall. & Materials Trans. A. 29 1299 Oxychlorination of Cr₂O₃ is characterized by an apparent activation energy of about 87 and 46 kJ/mol for temperatures lower than 650 °C and higher than 700 °C.

单词	activation energy
释义	> as lemmas activation energy activation energy n. Chemistry the minimum energy that must be supplied to atoms or molecules in order for them to undergo a chemical reaction or other process; spec. the energy required for the species involved in a reaction to form a loosely-bound intermediate or transition state which can then break up to give the reaction products. ΚΠ 1919 Jrnl. Chem. Soc. 115 185 The action of a catalyst is to be ascribed to the substitution of relatively small energy terms..in place of true critical energies of activation or dissociation.] 1924 Proc. Royal Soc. A. 105 662 After a well-marked limited of λ = 2820 representing an activation energy of 101,000 calories per gm. mol., continuous bands appear [in the spectrum of naphthalene]. 1983 G. C. Hill & J. S. Holman Chem. in Context (ed. 2) xviii. 274 Since the activation energy of the catalysed reaction is lower, the reaction rate is faster. 1998 Metall. & Materials Trans. A. 29 1299 Oxychlorination of Cr₂O₃ is characterized by an apparent activation energy of about 87 and 46 kJ/mol for temperatures lower than 650 °C and higher than 700 °C. extracted from activationn. < as lemmas
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