activation energy

简明释义

活化能

英英释义

例句

1.The temperature increase can provide the necessary activation energy 活化能 for a reaction to take place.

温度的升高可以提供反应发生所需的 activation energy 活化能。

2.Understanding the concept of activation energy 活化能 is crucial for developing efficient industrial processes.

理解 activation energy 活化能 的概念对于开发高效的工业过程至关重要。

3.Catalysts work by lowering the activation energy 活化能, allowing reactions to proceed more quickly.

催化剂通过降低 activation energy 活化能 来使反应更快进行。

4.In chemical reactions, the amount of activation energy 活化能 required can determine the rate at which the reaction occurs.

在化学反应中，所需的 activation energy 活化能 的量可以决定反应发生的速率。

5.The activation energy 活化能 barrier must be overcome for the reactants to transform into products.

必须克服 activation energy 活化能 障碍，反应物才能转变为产物。

作文

In the world of chemistry, the concept of activation energy plays a crucial role in understanding how reactions occur. Activation energy (活化能) is defined as the minimum amount of energy required for a chemical reaction to take place. It acts as a barrier that reactants must overcome in order to transform into products. This concept not only applies to chemical reactions but also extends to various processes in our daily lives, from cooking to biological functions. To illustrate the significance of activation energy (活化能), let us consider the process of cooking. When we heat food, we are essentially providing the necessary activation energy (活化能) to initiate chemical reactions that enhance flavors, change textures, and ensure food safety. For example, when boiling water, the heat provides the activation energy (活化能) needed to break the hydrogen bonds between water molecules, allowing them to transition from a liquid to a vapor state. Without sufficient activation energy (活化能), this transformation would not occur, and we would be unable to cook our meals effectively.In biological systems, activation energy (活化能) is equally important. Enzymes, which are biological catalysts, lower the activation energy (活化能) required for biochemical reactions. This allows metabolic processes to occur at a rate that sustains life. For instance, in our bodies, enzymes help in the digestion of food by reducing the activation energy (活化能) needed for breaking down complex molecules into simpler forms. Without the presence of these enzymes, the activation energy (活化能) required for such reactions would be too high, leading to inefficient digestion and energy production.Moreover, the concept of activation energy (活化能) can be observed in everyday chemical reactions. Consider the example of lighting a match. The friction created when striking the match against the box generates enough heat, which serves as the activation energy (活化能) needed to ignite the chemicals on the match head. If the activation energy (活化能) is not reached, the match will not light, demonstrating how critical this energy threshold is for initiating reactions.Understanding activation energy (活化能) also has practical implications in fields such as environmental science and engineering. For instance, in the development of more efficient catalysts for industrial processes, scientists strive to find ways to lower the activation energy (活化能) required for reactions, thereby increasing the overall efficiency and reducing energy consumption. This is particularly important in the context of sustainable practices and reducing the carbon footprint of chemical manufacturing.In conclusion, the concept of activation energy (活化能) is fundamental to both chemistry and biology. It illustrates the energy barriers that must be overcome for reactions to occur, whether in cooking, digestion, or industrial processes. By understanding and manipulating activation energy (活化能), we can enhance our ability to control chemical reactions, improve efficiencies, and innovate in various scientific fields. The study of activation energy (活化能) not only enriches our knowledge of the natural world but also empowers us to make informed decisions in our daily lives and future technological advancements.

在化学的世界中，活化能（activation energy）这一概念在理解反应发生的过程中起着至关重要的作用。活化能被定义为化学反应发生所需的最小能量。它充当了反应物必须克服的障碍，以便转变为产物。这个概念不仅适用于化学反应，也扩展到我们日常生活中的各种过程，从烹饪到生物功能。为了说明活化能的重要性，让我们考虑烹饪的过程。当我们加热食物时，实际上是在提供必要的活化能以启动增强风味、改变质地和确保食品安全的化学反应。例如，当水沸腾时，热量提供了打破水分子之间氢键所需的活化能，使其能够从液态转变为气态。如果没有足够的活化能，这种转变将不会发生，我们将无法有效地烹饪食物。在生物系统中，活化能同样重要。酶作为生物催化剂，可以降低生化反应所需的活化能。这使得代谢过程能够以维持生命的速度发生。例如，在我们的身体中，酶通过减少分解复杂分子为简单形式所需的活化能来帮助消化食物。如果没有这些酶的存在，反应所需的活化能将过高，导致消化和能量产生效率低下。此外，活化能的概念可以在日常化学反应中观察到。考虑点燃火柴的例子。当摩擦火柴与盒子之间产生的摩擦力产生足够的热量时，它就成为点燃火柴头上化学物质所需的活化能。如果没有达到活化能，火柴就无法点燃，展示了这一能量阈值在启动反应中的重要性。理解活化能在环境科学和工程等领域也具有实际意义。例如，在开发更高效的工业催化剂时，科学家们努力寻找降低反应所需活化能的方法，从而提高整体效率并减少能量消耗。这在可持续实践和减少化学制造碳足迹的背景下尤为重要。总之，活化能的概念是化学和生物学的基础。它说明了必须克服的能量障碍，以便在烹饪、消化或工业过程中发生反应。通过理解和操控活化能，我们可以增强控制化学反应的能力，提高效率，并在各个科学领域进行创新。对活化能的研究不仅丰富了我们对自然世界的认识，还使我们能够在日常生活和未来技术进步中做出明智的决策。