true vapour pressure

简明释义

真蒸气压

英英释义

例句

1.The calculation of the true vapour pressure 真实蒸气压 is crucial for predicting the behavior of volatile compounds in chemical processes.

计算真实蒸气压在预测化学过程中的挥发性化合物行为时至关重要。

2.In distillation, knowing the true vapour pressure 真实蒸气压 helps in determining the optimal separation conditions.

在蒸馏过程中，了解真实蒸气压有助于确定最佳分离条件。

3.The true vapour pressure 真实蒸气压 is used to evaluate the volatility of substances in environmental studies.

在环境研究中，真实蒸气压用于评估物质的挥发性。

4.Engineers must consider the true vapour pressure 真实蒸气压 when designing equipment for handling gases and liquids.

工程师在设计处理气体和液体的设备时必须考虑真实蒸气压。

5.The true vapour pressure 真实蒸气压 of a liquid increases with temperature, which is important for safety calculations.

液体的真实蒸气压随温度升高而增加，这对于安全计算非常重要。

作文

In the field of thermodynamics and fluid mechanics, understanding the properties of substances in different states is crucial. One important concept that often arises in these discussions is the true vapour pressure. The true vapour pressure refers to the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system. This concept is particularly significant when dealing with liquids and their corresponding vapors, as it helps in predicting how substances behave under varying conditions.To elaborate further, the true vapour pressure can be seen as a measure of a liquid's tendency to evaporate. When a liquid is placed in a closed container, some of its molecules will escape into the vapor phase. As more molecules evaporate, the vapor pressure increases until it reaches a point where the rate of evaporation equals the rate of condensation. At this equilibrium point, the pressure exerted by the vapor is known as the true vapour pressure.This concept is essential for various applications, including chemical engineering, meteorology, and environmental science. For example, in chemical engineering, understanding the true vapour pressure of a substance is vital for designing distillation columns and other separation processes. Knowing the vapor pressure allows engineers to optimize conditions for effective separation and purification of chemicals.Moreover, the true vapour pressure influences weather patterns and climate. In meteorology, the vapor pressure of water plays a significant role in determining humidity levels in the atmosphere. High vapor pressure indicates a high concentration of water vapor, which can lead to cloud formation and precipitation. Thus, understanding the true vapour pressure contributes to more accurate weather predictions and climate modeling.In addition, the true vapour pressure is also crucial in environmental science, particularly when assessing the volatility of organic compounds. Many pollutants have specific vapor pressures that determine how they behave in the environment. For instance, compounds with high true vapour pressure are more likely to evaporate into the atmosphere, potentially leading to air quality issues. Understanding these properties helps in developing strategies for pollution control and environmental protection.Furthermore, the true vapour pressure is affected by temperature. Generally, as the temperature increases, the true vapour pressure also increases. This relationship is due to the fact that higher temperatures provide more energy to the molecules, increasing their kinetic energy and allowing more molecules to escape into the vapor phase. This principle is critical in processes such as boiling and evaporation, where temperature control is vital for achieving desired outcomes.In conclusion, the concept of true vapour pressure is fundamental in various scientific fields. It serves as a key indicator of a substance's volatility and is essential for understanding phase equilibria, designing industrial processes, predicting weather patterns, and assessing environmental impacts. By grasping the importance of true vapour pressure, one can better appreciate the complex interactions between different states of matter and their implications in the real world. As we continue to explore these concepts, it becomes increasingly clear that the study of vapor pressures is not just an academic exercise, but a crucial component of many practical applications that affect our daily lives.

在热力学和流体力学领域，理解不同状态下物质的性质至关重要。一个经常出现的重要概念是true vapour pressure。true vapour pressure指的是在封闭系统中，在给定温度下，蒸气与其凝缩相之间处于热力学平衡时所施加的压力。这个概念在处理液体及其对应蒸气时尤其重要，因为它有助于预测物质在不同条件下的行为。进一步阐述，true vapour pressure可以看作是液体挥发倾向的一个度量。当液体被放置在封闭容器中时，其中一些分子会逃逸到蒸气相中。随着更多分子的蒸发，蒸气压力增加，直到达到一个点，在此点上，蒸发速率等于凝结速率。在这个平衡点上，蒸气施加的压力被称为true vapour pressure。这一概念对化学工程、气象学和环境科学等多个应用至关重要。例如，在化学工程中，了解物质的true vapour pressure对于设计蒸馏塔和其他分离过程至关重要。了解蒸气压力使工程师能够优化条件，以实现有效的化学分离和纯化。此外，true vapour pressure还影响天气模式和气候。在气象学中，水的蒸气压力在决定大气湿度水平方面起着重要作用。高蒸气压力表明水蒸气浓度高，这可能导致云的形成和降水。因此，理解true vapour pressure有助于更准确的天气预测和气候建模。此外，true vapour pressure在环境科学中也至关重要，特别是在评估有机化合物的挥发性时。许多污染物具有特定的蒸气压力，决定了它们在环境中的行为。例如，具有高true vapour pressure的化合物更可能蒸发到大气中，可能导致空气质量问题。了解这些特性有助于制定污染控制和环境保护策略。此外，true vapour pressure还受到温度的影响。一般来说，随着温度的升高，true vapour pressure也会增加。这一关系是由于较高的温度为分子提供了更多的能量，从而增加了它们的动能，使更多分子能够逃逸到蒸气相中。这一原理在沸腾和蒸发等过程中至关重要，温度控制对于实现所需结果至关重要。总之，true vapour pressure的概念在各个科学领域中都是基础。它作为物质挥发性的关键指标，对于理解相平衡、设计工业过程、预测天气模式以及评估环境影响至关重要。通过掌握true vapour pressure的重要性，人们可以更好地理解不同物质状态之间的复杂相互作用及其在现实世界中的影响。随着我们继续探索这些概念，越来越清楚的是，研究蒸气压力不仅仅是学术上的练习，而是许多影响我们日常生活的实际应用的关键组成部分。