名词
中文翻译：反应速率常数
同义词：
['rate of reaction', 'reaction rate', 'constant rate']
例句：
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1. Thechemical reaction is very fast, so the rate constant is high.
化学反应非常快，因此速率常数很高。
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2. To calculate the rate constant, we need to know the initial concentration and the rate at which it changes over time.
为了计算速率常数，我们需要知道初始浓度和随时间变化的速率。
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3. The rate constant for this reaction is 0.5 per hour, indicating that the reaction is slow.
这个反应的速率常数是每小时0.5，表明反应很慢。