real gas

简明释义

实际气体

英英释义

例句

1.In thermodynamics, we often compare ideal gases to real gas 真实气体 to understand deviations in behavior.

在热力学中，我们常常将理想气体与真实气体 真实气体进行比较，以理解行为的偏差。

2.The real gas 真实气体 law accounts for intermolecular forces and the volume occupied by gas molecules.

真实气体 真实气体定律考虑了分子间的相互作用力和气体分子所占的体积。

3.The Van der Waals equation is used to describe the behavior of real gas 真实气体 more accurately than the ideal gas law.

范德瓦尔斯方程用于比理想气体定律更准确地描述真实气体 真实气体的行为。

4.When studying real gas 真实气体, one must consider factors like pressure and temperature.

在研究真实气体 真实气体时，必须考虑压力和温度等因素。

5.During our chemistry lab, we learned how to measure the properties of a real gas 真实气体 under different temperatures.

在我们的化学实验室中，我们学习了如何测量不同温度下真实气体 真实气体的性质。

作文

In the study of thermodynamics, we often encounter the concept of a real gas, which refers to gases that do not behave ideally under all conditions. Unlike an ideal gas, which follows the ideal gas law perfectly, a real gas exhibits deviations from this behavior due to intermolecular forces and the volume occupied by the gas molecules themselves. Understanding the properties of a real gas is crucial for various applications in science and engineering.To elaborate, the ideal gas law is represented by the equation PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the universal gas constant, and T is temperature. This equation assumes that gas molecules do not interact with each other and that they occupy no volume. However, in reality, these assumptions do not hold true for most gases, especially at high pressures and low temperatures. Under such conditions, the effects of molecular size and intermolecular attractions become significant, leading to the need for corrections.For instance, when considering a real gas, one must take into account the Van der Waals equation, which modifies the ideal gas law to include parameters that account for molecular volume and attraction. The Van der Waals equation is expressed as (P + a(n/V)²)(V - nb) = nRT, where 'a' and 'b' are constants specific to each gas that represent the strength of intermolecular forces and the volume occupied by the gas molecules, respectively. This equation provides a more accurate representation of how a real gas behaves under various conditions.The significance of studying real gas behavior extends beyond academic interest; it has practical implications in fields such as chemical engineering, meteorology, and environmental science. For example, in chemical reactions involving gases, knowing whether the gases involved behave as real gases or ideal gases can influence reaction rates and yields. Similarly, meteorologists must consider the behavior of atmospheric gases, which are real gases, to predict weather patterns accurately.Moreover, the understanding of real gases plays a critical role in the design of equipment such as compressors and refrigeration systems, where gas behavior under varying conditions directly impacts efficiency and performance. Engineers must use models that accurately reflect real gas behavior to ensure that these systems operate effectively in real-world applications.In conclusion, the study of real gases is essential for both theoretical and practical reasons. While the ideal gas law provides a useful framework for understanding gas behavior, it is the recognition of the complexities introduced by real gases that allows scientists and engineers to make accurate predictions and designs. As we continue to explore the properties of different gases, the distinction between ideal and real gases will remain a fundamental aspect of thermodynamics, influencing research and technological advancements for years to come.

在热力学的研究中，我们经常遇到“真实气体”这一概念，它指的是在所有条件下都不表现出理想行为的气体。与完美遵循理想气体定律的理想气体不同，真实气体由于分子间的相互作用力和气体分子本身所占据的体积而表现出偏离这种行为的特征。理解真实气体的性质对于科学和工程的各种应用至关重要。详细来说，理想气体定律用方程PV = nRT表示，其中P是压力，V是体积，n是摩尔数，R是通用气体常数，T是温度。该方程假设气体分子之间没有相互作用，并且它们不占据体积。然而，实际上，这些假设对于大多数气体并不成立，特别是在高压和低温下。在这种情况下，分子大小和分子间吸引力的影响变得显著，因此需要进行修正。例如，在考虑真实气体时，必须考虑范德瓦尔斯方程，它对理想气体定律进行了修正，以包含考虑分子体积和吸引力的参数。范德瓦尔斯方程表达为(P + a(n/V)²)(V - nb) = nRT，其中'a'和'b'是特定于每种气体的常数，分别代表分子间力的强度和气体分子所占据的体积。这个方程提供了在各种条件下真实气体行为的更准确表示。研究真实气体行为的重要性不仅限于学术兴趣；它在化学工程、气象学和环境科学等领域具有实际意义。例如，在涉及气体的化学反应中，了解参与反应的气体是否表现为真实气体或理想气体，可以影响反应速率和产率。同样，气象学家必须考虑大气气体的行为，这些气体是真实气体，以准确预测天气模式。此外，理解真实气体在压缩机和制冷系统等设备的设计中发挥着关键作用，因为在不同条件下气体的行为直接影响效率和性能。工程师必须使用准确反映真实气体行为的模型，以确保这些系统在实际应用中有效运行。总之，研究真实气体对于理论和实践都至关重要。虽然理想气体定律提供了理解气体行为的有用框架，但正是对真实气体所引入的复杂性的认识，使科学家和工程师能够做出准确的预测和设计。随着我们继续探索不同气体的性质，理想气体和真实气体之间的区别将始终是热力学的一个基本方面，影响着未来多年的研究和技术进步。