isothermal process

简明释义

等温过程

英英释义

例句

1.In laboratory experiments, scientists often simulate an isothermal process 等温过程 using water baths to maintain a constant temperature.

在实验室实验中，科学家们常常使用水浴来模拟 等温过程 isothermal process ，以保持恒定的温度。

2.In thermodynamics, an isothermal process 等温过程 occurs when a system's temperature remains constant while it exchanges heat with its surroundings.

在热力学中，等温过程 isothermal process 是指系统在与周围环境进行热交换时温度保持不变。

3.During an isothermal process 等温过程, the internal energy of an ideal gas remains constant since temperature does not change.

在 等温过程 isothermal process 中，理想气体的内能保持不变，因为温度没有变化。

4.A classic example of an isothermal process 等温过程 is the slow compression of a gas in a piston where the temperature is maintained by a heat reservoir.

一个经典的 等温过程 isothermal process 的例子是气体在活塞中缓慢压缩，同时通过热源保持温度。

5.The efficiency of a Carnot engine is derived from the isothermal process 等温过程 that occurs at the high-temperature reservoir.

卡诺发动机的效率来源于发生在高温热源处的 等温过程 isothermal process 。

作文

An isothermal process is a fundamental concept in thermodynamics that describes a process in which the temperature of a system remains constant. This means that during an isothermal process, any heat added to the system is used to do work, rather than increasing the internal energy of the system. The significance of this process can be observed in various real-world applications, especially in the fields of engineering and physics. To better understand the isothermal process, let's consider a simple example involving an ideal gas contained in a piston-cylinder arrangement. When the gas is compressed or expanded slowly enough while maintaining a constant temperature, we can refer to this as an isothermal process. For instance, if we were to compress the gas by pushing down the piston, the gas would heat up due to compression. However, if we simultaneously allow heat to escape from the system, the temperature can remain stable throughout the process. This balance of work done on the gas and heat exchanged with the surroundings illustrates the essence of an isothermal process. The mathematical representation of an isothermal process can be derived from the ideal gas law, which states that PV = nRT, where P is pressure, V is volume, n is the number of moles of gas, R is the universal gas constant, and T is the absolute temperature. In an isothermal process, since the temperature (T) remains constant, any changes in pressure and volume can be described by the equation P1V1 = P2V2. This relationship showcases how the product of pressure and volume remains constant during an isothermal process, making it a crucial principle for engineers and scientists alike. One of the most common applications of an isothermal process is in heat engines, particularly in the Carnot cycle, which is a theoretical model that helps us understand the efficiency of heat engines. The Carnot cycle consists of two isothermal processes and two adiabatic processes. During the isothermal process, the working substance absorbs heat from a hot reservoir and does work on the surroundings, all while maintaining a constant temperature. This highlights the importance of isothermal processes in maximizing the efficiency of thermal systems. In conclusion, the isothermal process is a vital concept in thermodynamics that has significant implications in both theoretical and practical applications. By keeping the temperature constant, it allows for a clear understanding of how heat and work interact within a system. Whether in designing efficient engines or studying the behavior of gases, the principles underlying the isothermal process provide essential insights into the workings of our physical world. Understanding this process not only enhances our knowledge of thermodynamics but also aids in the development of innovative technologies that rely on these fundamental principles.

等温过程是热力学中的一个基本概念，描述了一个系统的温度保持不变的过程。这意味着在一个等温过程中，任何加入系统的热量都用于做功，而不是增加系统的内能。这个过程的重要性可以在各种现实应用中观察到，特别是在工程和物理领域。为了更好地理解等温过程，我们考虑一个简单的例子，涉及一个理想气体被容器中的活塞包围。当气体在保持恒定温度的情况下被缓慢压缩或扩展时，我们可以称之为等温过程。例如，如果我们通过向下推活塞来压缩气体，由于压缩，气体会加热。然而，如果我们同时允许热量从系统中逸出，则在整个过程中温度可以保持稳定。这种对气体所做功和与周围环境交换热量的平衡说明了等温过程的本质。等温过程的数学表示可以从理想气体定律推导出来，该定律表明PV = nRT，其中P是压力，V是体积，n是气体的摩尔数，R是普适气体常数，T是绝对温度。在等温过程中，由于温度（T）保持不变，压力和体积的任何变化都可以用方程P1V1 = P2V2来描述。这种关系展示了压力和体积的乘积在等温过程中保持不变，使其成为工程师和科学家共同关注的关键原理。等温过程的一个常见应用是在热机中，特别是在卡诺循环中，卡诺循环是一个理论模型，帮助我们理解热机的效率。卡诺循环由两个等温过程和两个绝热过程组成。在等温过程中，工作物质从热源吸收热量并对周围环境做功，同时保持恒定温度。这突显了等温过程在最大化热系统效率中的重要性。总之，等温过程是热力学中的一个重要概念，在理论和实际应用中都有重要意义。通过保持温度不变，它使我们能够清晰地理解热量和功在系统中的相互作用。无论是在设计高效发动机还是研究气体行为，等温过程背后的原理都提供了对我们物理世界运作的基本洞察。理解这一过程不仅增强了我们对热力学的认识，而且有助于开发依赖于这些基本原理的创新技术。