reaction rate

简明释义

反应遣度

英英释义

例句

1.The reaction rate 反应速率 increased as the concentration of reactants was raised.

随着反应物浓度的增加，反应速率也提高了。

2.The chemist measured the reaction rate 反应速率 of the acid-base neutralization.

化学家测量了酸碱中和反应的反应速率。

3.Temperature can significantly affect the reaction rate 反应速率 of chemical reactions.

温度可以显著影响化学反应的反应速率。

4.We need to calculate the reaction rate 反应速率 to determine the efficiency of the process.

我们需要计算反应速率以确定该过程的效率。

5.In this experiment, we will observe how catalysts influence the reaction rate 反应速率.

在这个实验中，我们将观察催化剂如何影响反应速率。

作文

The concept of reaction rate is fundamental in the field of chemistry and plays a crucial role in understanding how chemical reactions occur. In simple terms, the reaction rate refers to the speed at which reactants are converted into products during a chemical reaction. This rate can vary greatly depending on several factors, including temperature, concentration of reactants, and the presence of catalysts. Understanding the reaction rate is essential not only for chemists but also for various industries that rely on chemical processes.For instance, in the pharmaceutical industry, the reaction rate can determine how quickly a drug is developed and brought to market. If a particular reaction occurs too slowly, it may delay the entire production process. Conversely, if the reaction rate is too fast, it could lead to unwanted by-products or even hazardous situations. Therefore, controlling the reaction rate is critical for ensuring safety and efficiency in drug manufacturing.In addition to industrial applications, the reaction rate is also significant in environmental science. For example, the rate at which pollutants break down in the environment can affect how long they remain harmful. If the reaction rate for a certain pollutant is slow, it may persist in the ecosystem and cause long-term damage. Conversely, rapid breakdown can mitigate harmful effects. Thus, studying the reaction rate helps scientists develop strategies for pollution management and environmental protection.Moreover, the reaction rate is not a constant value; it can change under different conditions. For instance, increasing the temperature usually increases the reaction rate. This is because higher temperatures provide more energy to the molecules involved in the reaction, leading to more frequent and energetic collisions. Similarly, increasing the concentration of reactants can also enhance the reaction rate as there are more molecules available to collide and react.Catalysts are another critical factor affecting the reaction rate. A catalyst is a substance that increases the reaction rate without being consumed in the process. It works by providing an alternative pathway for the reaction with a lower activation energy. This means that even at lower temperatures, reactions can occur faster when a catalyst is present. This principle is widely applied in industrial processes, where catalysts are used to optimize production and reduce costs.In conclusion, the reaction rate is a vital concept in chemistry that influences various aspects of scientific research and industrial applications. By understanding the factors that affect the reaction rate, we can better control chemical processes, improve safety, and develop more efficient methods for producing goods. Whether in pharmaceuticals, environmental science, or industrial chemistry, the significance of the reaction rate cannot be overstated. As we continue to explore the complexities of chemical reactions, the study of reaction rate will remain a key focus for researchers and professionals alike.

反应速率的概念在化学领域是基础性的，并在理解化学反应如何发生方面起着至关重要的作用。简单来说，反应速率指的是反应物转化为产物的速度。这一速率可能因多种因素而异，包括温度、反应物浓度以及催化剂的存在。理解反应速率对于化学家以及依赖化学过程的各个行业都是至关重要的。例如，在制药行业，反应速率可以决定药物开发和上市的速度。如果某一反应发生得过慢，可能会延迟整个生产过程。相反，如果反应速率过快，则可能导致不必要的副产品，甚至产生危险情况。因此，控制反应速率对于确保药物制造的安全性和效率至关重要。除了工业应用，反应速率在环境科学中也具有重要意义。例如，污染物在环境中分解的速率会影响它们保持危害的时间。如果某种污染物的反应速率较慢，它可能会在生态系统中持续存在并造成长期损害。相反，快速分解可以减轻有害影响。因此，研究反应速率有助于科学家制定污染管理和环境保护的策略。此外，反应速率并不是一个恒定值；它可以在不同条件下变化。例如，增加温度通常会提高反应速率。这是因为更高的温度为参与反应的分子提供了更多能量，从而导致更频繁和更有能量的碰撞。同样，增加反应物的浓度也可以增强反应速率，因为可供碰撞和反应的分子增多。催化剂是影响反应速率的另一个关键因素。催化剂是一种在反应过程中不被消耗的物质，它通过提供一种具有较低活化能的替代反应路径来加快反应速率。这意味着即使在较低温度下，当存在催化剂时，反应也可以更快地进行。这一原理被广泛应用于工业过程，其中催化剂用于优化生产和降低成本。总之，反应速率是化学中的一个重要概念，影响着科学研究和工业应用的各个方面。通过理解影响反应速率的因素，我们可以更好地控制化学过程，提高安全性，并开发出更高效的商品生产方法。在制药、环境科学或工业化学领域，反应速率的重要性不容小觑。随着我们继续探索化学反应的复杂性，反应速率的研究将始终是研究人员和专业人士关注的重点。