dissociation energy

简明释义

离解能

英英释义

例句

1.In chemical reactions, the dissociation energy plays a crucial role in determining the stability of the products.

在化学反应中，解离能在决定产物的稳定性方面起着关键作用。

2.The dissociation energy of ionic bonds is generally higher than that of covalent bonds.

离子键的解离能通常高于共价键的解离能。

3.The dissociation energy can vary significantly between different molecules, affecting their reactivity.

解离能在不同分子之间可能有显著差异，这会影响它们的反应性。

4.Calculating the dissociation energy helps chemists understand how much energy is required to break a bond.

计算解离能可以帮助化学家了解打破一个键需要多少能量。

5.The dissociation energy of a hydrogen molecule is relatively low, making it easy to break apart into individual atoms.

氢分子的解离能相对较低，使其容易分解为单个原子。

作文

Dissociation energy is a fundamental concept in chemistry that refers to the amount of energy required to break a bond between two atoms in a molecule. This energy is crucial for understanding various chemical reactions and processes, as it determines the stability of molecules and their reactivity. In simpler terms, dissociation energy (解离能) is the energy needed to separate bonded atoms, and it plays a significant role in both organic and inorganic chemistry.When we consider a chemical reaction, the bonds between atoms must be broken for new bonds to form. The dissociation energy (解离能) indicates how strong those bonds are. A high dissociation energy (解离能) suggests that the bond is strong and requires a lot of energy to break, while a low dissociation energy (解离能) implies a weaker bond that can be easily broken. This concept is essential in predicting the behavior of molecules under different conditions, such as temperature and pressure.For example, in the case of diatomic molecules like oxygen (O2) or nitrogen (N2), the dissociation energy (解离能) values are relatively high due to the strong double and triple bonds, respectively. This means that these gases are relatively stable and do not react easily under standard conditions. However, when subjected to high temperatures or in the presence of catalysts, these bonds can break, leading to various chemical reactions.Understanding dissociation energy (解离能) is also vital in fields like biochemistry and pharmacology. For instance, enzymes often work by lowering the dissociation energy (解离能) of specific bonds, thereby speeding up reactions in biological systems. This is crucial for processes like metabolism, where the body needs to break down complex molecules into simpler ones efficiently. By studying the dissociation energy (解离能) of different substrates and enzyme interactions, scientists can design better drugs and therapies that target specific biochemical pathways.Moreover, the concept of dissociation energy (解离能) extends beyond simple molecular interactions. It is also applicable in understanding the behavior of ionic compounds. When ionic compounds dissolve in water, the energy required to separate the ions is directly related to their dissociation energy (解离能). This is why some salts dissolve easily, while others do not; the strength of the ionic bonds determines how much energy is needed for dissolution.In summary, dissociation energy (解离能) is a critical parameter in chemistry that helps us understand the stability and reactivity of molecules. It is essential for predicting the outcomes of chemical reactions, designing effective enzymes, and exploring the properties of ionic compounds. By grasping the concept of dissociation energy (解离能), students and researchers can gain deeper insights into the molecular world, paving the way for advancements in various scientific fields. Whether in academic research or practical applications, this knowledge remains a cornerstone of chemical science and its numerous interdisciplinary connections.

解离能是化学中的一个基本概念，指的是打破分子中两个原子之间的键所需的能量。这种能量对于理解各种化学反应和过程至关重要，因为它决定了分子的稳定性及其反应性。简单来说，dissociation energy（解离能）是分离结合原子所需的能量，它在有机化学和无机化学中扮演着重要角色。当我们考虑化学反应时，必须打破原子之间的键，才能形成新的键。dissociation energy（解离能）表明这些键的强度。高的dissociation energy（解离能）表明该键很强，需要大量能量才能打破，而低的dissociation energy（解离能）则暗示该键较弱，容易被打破。这个概念对于预测分子在不同条件下的行为（如温度和压力）至关重要。例如，在双原子分子如氧气（O2）或氮气（N2）的情况下，由于强双键和三键的存在，其dissociation energy（解离能）值相对较高。这意味着这些气体在标准条件下相对稳定，不容易反应。然而，当受到高温或催化剂的影响时，这些键可能会断裂，导致各种化学反应。理解dissociation energy（解离能）在生物化学和药理学等领域也至关重要。例如，酶通过降低特定键的dissociation energy（解离能）来加速生物系统中的反应。这对于代谢等过程至关重要，身体需要有效地将复杂分子分解为更简单的分子。通过研究不同底物和酶相互作用的dissociation energy（解离能），科学家可以设计出更好的药物和治疗方法，针对特定的生化途径。此外，dissociation energy（解离能）的概念不仅适用于简单的分子相互作用，还适用于理解离子化合物的行为。当离子化合物溶解在水中时，分离离子所需的能量与其dissociation energy（解离能）直接相关。这就是为什么某些盐容易溶解，而其他盐则不然；离子键的强度决定了溶解所需的能量。总之，dissociation energy（解离能）是化学中的一个关键参数，帮助我们理解分子的稳定性和反应性。它对于预测化学反应的结果、设计有效的酶以及探索离子化合物的性质至关重要。通过掌握dissociation energy（解离能）的概念，学生和研究人员可以深入了解分子世界，为各个科学领域的进步铺平道路。无论是在学术研究还是实际应用中，这一知识始终是化学科学及其众多跨学科联系的基石。