isothermal change

简明释义

等温变化

英英释义

例句

1.The isothermal change 等温变化 was crucial for the efficiency of the heat engine.

对于热机的效率来说，等温变化是至关重要的。

2.During the experiment, we observed an isothermal change 等温变化 in the gas as it expanded.

在实验中，我们观察到气体在膨胀时发生了等温变化。

3.We conducted a study on the isothermal change 等温变化 of water when it is heated slowly.

我们对水在缓慢加热时的等温变化进行了研究。

4.The isothermal change 等温变化 in the system allowed us to maintain a constant temperature while measuring pressure.

系统中的等温变化使我们在测量压力时能够保持恒定的温度。

5.In thermodynamics, an isothermal change 等温变化 occurs when a substance absorbs heat without changing its temperature.

在热力学中，等温变化发生在物质吸收热量而不改变其温度时。

作文

The concept of isothermal change refers to a process in which the temperature of a system remains constant while the system undergoes a change in its state. This term is often used in thermodynamics to describe processes where heat exchange occurs without any change in temperature. For instance, when a gas expands or compresses slowly enough that it can exchange heat with its surroundings, the temperature of the gas remains constant throughout the process. This is crucial in many scientific and engineering applications, such as in heat engines and refrigeration systems. Understanding isothermal change is essential for students and professionals in fields like physics, chemistry, and engineering. It allows them to predict how a system will behave under specific conditions, particularly when dealing with gases. The ideal gas law, which relates pressure, volume, and temperature, plays a significant role in describing isothermal change. According to this law, for an ideal gas, if the temperature remains constant, the product of pressure and volume will also remain constant. This principle can be illustrated through experiments that demonstrate how gases behave under controlled conditions. In practical terms, isothermal change can be observed in various real-world scenarios. For example, when ice melts at 0 degrees Celsius, it absorbs heat from the environment without changing its temperature until all the ice has turned to water. This phenomenon highlights the importance of understanding thermal energy transfer and phase changes. Similarly, in engineering applications, isothermal change is exploited in designing efficient refrigeration cycles, where the refrigerant absorbs heat from the environment at a constant temperature, allowing for effective cooling. Moreover, the study of isothermal change is not limited to ideal gases. It can also apply to liquids and even solids under certain conditions. For instance, during a phase transition, such as boiling or melting, substances undergo isothermal change as they absorb or release heat while maintaining a constant temperature. This understanding helps scientists and engineers design better materials and processes. In conclusion, isothermal change is a fundamental concept in thermodynamics that describes processes occurring at a constant temperature. Its applications range from natural phenomena to industrial processes, making it a vital topic for those studying the physical sciences. By grasping the principles behind isothermal change, individuals can enhance their understanding of energy transfer and the behavior of materials under varying conditions. This knowledge is not only academically enriching but also practically beneficial in various technological advancements.

“等温变化”这一概念是指在一个系统发生状态变化的过程中，系统的温度保持不变。这个术语常用于热力学中，用于描述在没有温度变化的情况下发生热量交换的过程。例如，当气体缓慢扩展或压缩，以至于能够与周围环境交换热量时，气体的温度在整个过程中保持恒定。这在许多科学和工程应用中至关重要，例如在热机和制冷系统中。理解“等温变化”对于物理、化学和工程等领域的学生和专业人士来说至关重要。它使他们能够预测系统在特定条件下的行为，特别是在处理气体时。理想气体定律涉及压力、体积和温度的关系，在描述“等温变化”时发挥着重要作用。根据这一法则，对于理想气体，如果温度保持不变，则压力和体积的乘积也将保持不变。通过演示实验可以说明这一原理，展示气体在受控条件下的行为。在实际应用中，“等温变化”可以在各种现实场景中观察到。例如，当冰在0摄氏度下融化时，它从环境中吸收热量，而温度在所有冰转化为水之前保持不变。这一现象突显了理解热能转移和相变的重要性。同样，在工程应用中，“等温变化”被用于设计高效的制冷循环，其中制冷剂在恒定温度下从环境中吸收热量，从而实现有效的冷却。此外，“等温变化”的研究并不仅限于理想气体。在某些条件下，它也适用于液体甚至固体。例如，在相变过程中，如沸腾或熔化，物质在保持恒定温度的情况下吸收或释放热量，这就是“等温变化”。这种理解帮助科学家和工程师设计更好的材料和工艺。总之，“等温变化”是热力学中的一个基本概念，描述了在恒定温度下发生的过程。它的应用范围从自然现象到工业过程，使其成为学习物理科学的一个重要主题。通过掌握“等温变化”背后的原理，个人可以增强对能量转移和材料在不同条件下行为的理解。这一知识不仅在学术上令人充实，而且在各种技术进步中具有实际意义。