degree of ionization

简明释义

电离度

英英释义

例句

1.The degree of ionization 电离度 of a weak acid is typically much lower than that of a strong acid.

弱酸的电离度通常远低于强酸的。

2.In the case of salts in solution, the degree of ionization 电离度 can influence the conductivity of the solution.

在盐溶液的情况下，电离度可以影响溶液的导电性。

3.A higher degree of ionization 电离度 indicates a more effective electrolyte.

更高的电离度表明电解质的有效性更强。

4.Measuring the degree of ionization 电离度 helps chemists understand the strength of an acid or base.

测量电离度帮助化学家理解酸或碱的强度。

5.The degree of ionization 电离度 of a gas can be affected by temperature and pressure.

气体的电离度可能会受到温度和压力的影响。

作文

The study of chemistry often leads us to explore various concepts that govern the behavior of substances in different states. One such concept is the degree of ionization, which plays a crucial role in understanding how acids, bases, and salts behave in solution. The degree of ionization refers to the fraction of a substance that has dissociated into ions when dissolved in a solvent, typically water. This concept is particularly important in the context of weak electrolytes, which do not fully ionize in solution. When we consider a weak acid, for example, only a portion of the acid molecules will donate protons to form hydronium ions, while the remainder will remain undissociated. The degree of ionization can be expressed mathematically as the ratio of the concentration of ionized species to the initial concentration of the substance. This ratio provides insight into the strength of the acid; a higher degree of ionization indicates a stronger acid, while a lower value suggests a weaker one. Understanding the degree of ionization is also essential for predicting the pH of a solution. The pH scale measures the acidity or basicity of a solution, and it is directly influenced by the concentration of hydrogen ions present. As the degree of ionization increases, so does the concentration of hydrogen ions, resulting in a lower pH. Conversely, if the degree of ionization is low, the solution will have fewer hydrogen ions and a higher pH. In addition to its implications for acids and bases, the degree of ionization is relevant in various industrial applications. For instance, in the production of fertilizers, the ionization of certain compounds affects nutrient availability for plants. A thorough understanding of the degree of ionization allows chemists to optimize conditions for the best yield and effectiveness of these products. Moreover, the degree of ionization can be influenced by several factors, including temperature, concentration, and the presence of other substances in the solution. As temperature increases, the kinetic energy of molecules rises, often leading to an increased degree of ionization. Similarly, diluting a solution can enhance the degree of ionization of a weak electrolyte, as there are fewer interactions between the molecules that inhibit dissociation. In conclusion, the degree of ionization is a fundamental concept in chemistry that aids in understanding the behavior of substances in solution. It is vital for predicting the properties of acids and bases, as well as for practical applications in various industries. By grasping the significance of the degree of ionization, students and professionals alike can deepen their understanding of chemical processes and enhance their ability to manipulate them effectively.

化学研究常常引导我们探索支配物质在不同状态下行为的各种概念。其中一个重要的概念是电离度，它在理解酸、碱和盐在溶液中如何行为方面发挥着至关重要的作用。电离度指的是当物质溶解在溶剂中时，已经离解成离子的物质的分数。这个概念在弱电解质的背景下尤为重要，因为弱电解质在溶液中并不会完全电离。当我们考虑一个弱酸时，例如，只有一部分酸分子会释放质子形成水合氢离子，而其余的则保持未电离状态。电离度可以用数学公式表示为离子化物质浓度与物质初始浓度的比率。这个比率提供了对酸强度的洞察；较高的电离度表明酸较强，而较低的值则暗示酸较弱。理解电离度对于预测溶液的pH值也至关重要。pH值测量溶液的酸性或碱性，直接受到氢离子浓度的影响。随着电离度的增加，氢离子的浓度也会增加，从而导致pH值降低。相反，如果电离度较低，溶液中的氢离子会更少，pH值则更高。除了对酸和碱的影响外，电离度在各种工业应用中也具有相关性。例如，在肥料生产中，某些化合物的电离影响植物的养分可用性。深入理解电离度使化学家能够优化条件，以获得最佳产量和效果。此外，电离度还会受到多种因素的影响，包括温度、浓度以及溶液中其他物质的存在。随着温度的升高，分子的动能增加，通常会导致电离度的增加。同样，稀释溶液可以增强弱电解质的电离度，因为分子之间的相互作用减少，抑制了离解。总之，电离度是化学中的一个基本概念，有助于理解物质在溶液中的行为。它对于预测酸和碱的性质以及在各个行业中的实际应用至关重要。通过掌握电离度的重要性，学生和专业人士都可以加深对化学过程的理解，并增强有效操控这些过程的能力。