reaction-rate constant

例句：

1. 1.The reaction rate constant for this chemical reaction is 0.5 per second.
   这种化学反应的反应速率常数是每秒0.5。
2. 2.The rate constant of the reaction increases with temperature.
   反应速率常数随温度升高而增加。
3. 3.The rate constant of a chemical reaction can be used to predict how long it will take for the reaction to reach equilibrium.
   化学反应的速率常数可以用来预测达到平衡状态所需的时间。