adiabatic process

简明释义

绝热过程

英英释义

例句

1.In thermodynamics, an adiabatic process 绝热过程 occurs when a system does not exchange heat with its surroundings.

在热力学中，adiabatic process 绝热过程 是指一个系统与其周围环境不进行热量交换时发生的过程。

2.The expansion of a gas in a vacuum is an example of an adiabatic process 绝热过程 where no heat is lost.

气体在真空中的膨胀是一个adiabatic process 绝热过程的例子，因为没有热量损失。

3.The cooling effect observed in expanding gases is a result of an adiabatic process 绝热过程.

在气体膨胀中观察到的冷却效应是adiabatic process 绝热过程的结果。

4.In a piston-cylinder apparatus, the work done during an adiabatic process 绝热过程 can be calculated using specific formulas.

在活塞-气缸装置中，adiabatic process 绝热过程 中所做的功可以通过特定公式计算。

5.During the rapid compression of a gas, the temperature increases due to an adiabatic process 绝热过程.

在气体快速压缩的过程中，由于发生了adiabatic process 绝热过程，温度会升高。

作文

In thermodynamics, an adiabatic process refers to a process in which there is no heat transfer into or out of the system. This means that any change in the internal energy of the system is due solely to work done on or by the system. The concept of an adiabatic process is crucial for understanding various physical phenomena, particularly in the fields of physics and engineering.To illustrate this, consider the example of a gas contained within a piston. If the gas is compressed quickly, it does not have time to exchange heat with its surroundings. As a result, the temperature of the gas increases due to the work done on it by the piston. This scenario exemplifies an adiabatic process where all the energy supplied to the gas is converted into internal energy, leading to an increase in temperature without any heat loss.On the other hand, if the gas were compressed slowly, it would have time to dissipate heat to its surroundings, and the process would be termed as isothermal, where the temperature remains constant. This contrast highlights the significance of the adiabatic process in thermodynamic studies, as it helps differentiate between processes based on heat transfer.The mathematical representation of an adiabatic process can be described using the first law of thermodynamics, which states that the change in internal energy (ΔU) is equal to the heat added to the system (Q) minus the work done by the system (W). For an adiabatic process, since there is no heat exchange (Q = 0), the equation simplifies to ΔU = -W. This relationship indicates that any work done on the system results in an increase in internal energy, reinforcing the idea that the process is entirely insulated from heat transfer.Moreover, the adiabatic process plays a vital role in real-world applications such as refrigeration cycles and heat engines. In these systems, understanding how gases behave under adiabatic processes allows engineers to design more efficient machines. For instance, in a Carnot engine, which is an idealized heat engine, the compression and expansion of gases are often modeled as adiabatic processes to maximize efficiency.In conclusion, the adiabatic process is a fundamental concept in thermodynamics that describes a process without heat transfer. Its implications extend beyond theoretical physics into practical engineering applications. By grasping the principles governing adiabatic processes, one can gain deeper insights into the behavior of gases and the efficiency of thermal systems. Understanding this concept not only enriches one's knowledge of thermodynamics but also equips individuals with the tools necessary to tackle complex engineering challenges in the future.

在热力学中，绝热过程是指一个过程中，系统内部与外部之间没有热量的传递。这意味着系统内部能量的任何变化仅由对系统所做的功或由系统所做的功引起。绝热过程的概念对于理解各种物理现象至关重要，尤其是在物理和工程领域。为了说明这一点，考虑一个包含气体的活塞的例子。如果气体被快速压缩，它没有时间与周围环境交换热量。因此，由于活塞对其所做的功，气体的温度会升高。这个场景例证了一个绝热过程，其中提供给气体的所有能量都转化为内部能量，导致温度在没有热量损失的情况下升高。另一方面，如果气体被缓慢压缩，它将有时间向周围散发热量，这个过程将被称为等温过程，其中温度保持不变。这种对比突显了绝热过程在热力学研究中的重要性，因为它有助于根据热量传递区分不同的过程。绝热过程的数学表示可以通过热力学第一定律来描述，该定律指出，内部能量的变化（ΔU）等于加到系统上的热量（Q）减去系统所做的功（W）。对于绝热过程，由于没有热量交换（Q = 0），该方程简化为ΔU = -W。这个关系表明，施加在系统上的任何功都会导致内部能量的增加，进一步强调了该过程完全与热量传递隔绝的概念。此外，绝热过程在现实应用中也发挥着至关重要的作用，例如制冷循环和热机。在这些系统中，理解气体在绝热过程下的行为使工程师能够设计出更高效的机器。例如，在卡诺发动机中，这是一种理想化的热机，气体的压缩和膨胀通常被建模为绝热过程，以最大化效率。总之，绝热过程是热力学中的一个基本概念，描述了一个没有热量传递的过程。它的影响超越了理论物理，延伸到实际工程应用中。通过掌握绝热过程的原则，人们可以更深入地了解气体的行为和热系统的效率。理解这一概念不仅丰富了人们对热力学的知识，还为个人提供了解决未来复杂工程挑战所需的工具。