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词汇 rate constant
释义

Definition of rate constant in English:

rate constant

noun
Chemistry
  • A coefficient of proportionality relating the rate of a chemical reaction at a given temperature to the concentration of reactant (in a unimolecular reaction) or to the product of the concentrations of reactants.

    〔化〕速率常数

    Example sentencesExamples
    • The equilibrium constant for the reaction is equal to the rate constant of the forward reaction divided by the rate constant for the reverse reaction.
    • That is, we would need to know the exact concentration of the photoproducts in order to determine the rate constant for autocatalysis.
    • In the same study, it was also found that the ET rate constant was independent of temperature in the range of 283-310 K.
    • In all tested cases, the mutations affect the dissociation rate constant much more than the association rate constant.
    • The latter difference is largely consistent with the temperature dependence of the rate constant.
    • The rate constant for the forward reaction is defined as k + 1 and the reverse as k - 1.

Definition of rate constant in US English:

rate constant

noun
Chemistry
  • A coefficient of proportionality relating the rate of a chemical reaction at a given temperature to the concentration of reactant (in a unimolecular reaction) or to the product of the concentrations of reactants.

    〔化〕速率常数

    Example sentencesExamples
    • The equilibrium constant for the reaction is equal to the rate constant of the forward reaction divided by the rate constant for the reverse reaction.
    • In all tested cases, the mutations affect the dissociation rate constant much more than the association rate constant.
    • The rate constant for the forward reaction is defined as k + 1 and the reverse as k - 1.
    • In the same study, it was also found that the ET rate constant was independent of temperature in the range of 283-310 K.
    • The latter difference is largely consistent with the temperature dependence of the rate constant.
    • That is, we would need to know the exact concentration of the photoproducts in order to determine the rate constant for autocatalysis.
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