rate of reaction

简明释义

反应遣度

英英释义

例句

1.Measuring the rate of reaction helps chemists understand how fast a reaction occurs.

测量反应速率rate of reaction有助于化学家理解反应发生的速度。

2.In biological systems, the rate of reaction can be influenced by enzyme activity.

在生物系统中，酶活性可以影响反应速率rate of reaction。

3.The catalyst used in the process enhances the rate of reaction dramatically.

该过程使用的催化剂显著提高了反应速率rate of reaction。

4.The rate of reaction in this experiment increased significantly with higher temperatures.

在这个实验中，温度升高导致反应速率rate of reaction显著增加。

5.To optimize the rate of reaction, we need to adjust the concentration of the reactants.

为了优化反应速率rate of reaction，我们需要调整反应物的浓度。

作文

The concept of the rate of reaction is fundamental in the field of chemistry. It refers to the speed at which reactants are converted into products in a chemical reaction. Understanding the rate of reaction is crucial for chemists as it allows them to manipulate and control reactions effectively. Various factors influence the rate of reaction, including temperature, concentration, surface area, and the presence of catalysts. For instance, increasing the temperature typically increases the rate of reaction because the molecules gain more kinetic energy, leading to more frequent and effective collisions between reactant particles. Similarly, higher concentrations of reactants can enhance the rate of reaction since there are more particles available to collide with each other. Surface area also plays a significant role; powdered solids react faster than larger chunks due to their increased exposure to reactants. Catalysts are substances that increase the rate of reaction without being consumed in the process. They work by providing an alternative pathway for the reaction with a lower activation energy. This means that more reactant particles can successfully collide and react, thus speeding up the overall process. In practical applications, understanding the rate of reaction is vital in industries such as pharmaceuticals, where the efficiency of drug production can be greatly affected by reaction rates. By optimizing these rates, companies can reduce costs and improve yields. Moreover, the rate of reaction is not only important in industrial settings but also in everyday life. For example, the ripening of fruit involves chemical reactions that change the fruit’s flavor and texture over time. Knowledge of how temperature and other factors affect the rate of reaction can help us better manage food storage and preservation. In conclusion, the rate of reaction is a key concept in chemistry that influences various processes both in laboratory settings and in real-world applications. By studying and understanding the factors that affect the rate of reaction, we can harness this knowledge to improve chemical processes, enhance product quality, and make informed decisions in our daily lives.

反应速率的概念在化学领域中是基础性的。它指的是反应物转化为产物的速度。理解反应速率对于化学家来说至关重要，因为这使他们能够有效地操控和控制反应。许多因素会影响反应速率，包括温度、浓度、表面积以及催化剂的存在。 例如，通常情况下，提高温度会增加反应速率，因为分子获得了更多的动能，从而导致反应物粒子之间更频繁和有效的碰撞。同样，反应物的浓度越高，反应速率也会提高，因为可供碰撞的粒子数量增多。表面积也起着重要作用；粉末状固体比较大的块状物反应更快，因为它们与反应物接触的面积更大。 催化剂是能够在反应过程中加速反应速率而不被消耗的物质。它们通过提供一种具有较低活化能的替代反应途径来发挥作用。这意味着更多的反应物粒子可以成功碰撞并反应，从而加速整体过程。 在实际应用中，理解反应速率在制药等行业中至关重要，因为反应速率会极大影响药物生产的效率。通过优化这些速率，公司可以降低成本，提高产量。 此外，反应速率不仅在工业环境中重要，在日常生活中也同样如此。例如，水果的成熟涉及化学反应，这些反应随着时间的推移改变水果的味道和质地。了解温度和其他因素如何影响反应速率可以帮助我们更好地管理食品的储存和保存。 总之，反应速率是化学中的一个关键概念，它影响着实验室环境和现实世界应用中的各种过程。通过研究和理解影响反应速率的因素，我们可以利用这些知识来改善化学过程、提高产品质量，并在日常生活中做出明智的决策。