Kelvin scale

简明释义

开尔文温标

英英释义

例句

1.Absolute zero is defined as 0 K on the Kelvin scale (开尔文温标), where all molecular motion stops.

绝对零度被定义为Kelvin scale（开尔文温标）上的0 K，此时所有分子运动停止。

2.In scientific experiments, it's crucial to convert Celsius to Kelvin scale (开尔文温标) for accurate results.

在科学实验中，将摄氏度转换为Kelvin scale（开尔文温标）以获得准确结果是至关重要的。

3.The Kelvin scale (开尔文温标) is commonly used in physics and engineering to avoid negative temperatures.

在物理和工程中，通常使用Kelvin scale（开尔文温标）以避免负温度。

4.Water freezes at 273.15 K on the Kelvin scale (开尔文温标).

水在Kelvin scale（开尔文温标）上冻结于273.15 K。

5.The temperature of the stars is often measured on the Kelvin scale (开尔文温标) to reflect their heat and energy.

恒星的温度通常在Kelvin scale（开尔文温标）上测量，以反映它们的热量和能量。

作文

The Kelvin scale is an essential temperature scale used in science and engineering. It is named after the Scottish physicist William Thomson, 1st Baron Kelvin, who made significant contributions to thermodynamics. The Kelvin scale is unique because it starts at absolute zero, which is the point where all molecular motion ceases. This makes the Kelvin scale particularly useful for scientific calculations, as it provides a clear and absolute reference point. One of the most important aspects of the Kelvin scale is its relationship with other temperature scales, such as Celsius and Fahrenheit. In the Kelvin scale, temperatures are measured in kelvins (K), and the conversion between Celsius and Kelvin is straightforward: to convert Celsius to Kelvin, you simply add 273.15. For instance, water freezes at 0 degrees Celsius, which corresponds to 273.15 K on the Kelvin scale. This direct relationship allows scientists to easily switch between different temperature scales when necessary.The Kelvin scale is widely used in various fields, including physics, chemistry, and engineering. In physics, it is crucial for understanding concepts like thermodynamic temperature, which is fundamental to the laws of thermodynamics. For example, the ideal gas law, which describes the behavior of gases, relies on temperature being measured in kelvins. Similarly, in chemistry, reactions often depend on temperature, and using the Kelvin scale ensures that scientists can accurately predict reaction rates and equilibria.In engineering, the Kelvin scale is also important. Many engineering applications require precise temperature measurements, especially in fields like materials science and electronics. For instance, the performance of semiconductors is highly temperature-dependent, and engineers must consider the Kelvin scale when designing circuits that operate efficiently at various temperatures.Moreover, the Kelvin scale plays a vital role in astrophysics and cosmology. Scientists studying the universe often deal with extremely low temperatures, such as those found in deep space. The Kelvin scale allows astronomers to express these temperatures accurately, aiding in the understanding of cosmic phenomena. For example, the cosmic microwave background radiation, which is a remnant of the Big Bang, has a temperature of about 2.7 K on the Kelvin scale.In conclusion, the Kelvin scale is a fundamental temperature scale that is indispensable in the scientific community. Its absolute nature, ease of conversion to other scales, and wide applicability across various fields make it a critical tool for researchers and engineers alike. Understanding the Kelvin scale not only enhances our grasp of temperature but also deepens our comprehension of the physical world around us. As we continue to explore the mysteries of the universe, the Kelvin scale will undoubtedly remain a key component in our scientific endeavors.

开尔文温标（Kelvin scale）是科学和工程中使用的重要温度标度。它以苏格兰物理学家威廉·汤姆森（开尔文男爵）命名，他对热力学做出了重要贡献。开尔文温标的独特之处在于它从绝对零度开始，绝对零度是所有分子运动停止的点。这使得开尔文温标在科学计算中尤为有用，因为它提供了一个清晰和绝对的参考点。开尔文温标最重要的一个方面是它与其他温度标度（如摄氏度和华氏度）之间的关系。在开尔文温标中，温度以开尔文（K）为单位测量，摄氏度与开尔文之间的转换非常简单：要将摄氏度转换为开尔文，只需加上273.15。例如，水在0摄氏度下冻结，这对应于开尔文温标的273.15 K。这种直接关系使科学家能够在需要时轻松地在不同温度标度之间切换。开尔文温标被广泛应用于物理、化学和工程等多个领域。在物理学中，它对于理解热力学温度等概念至关重要，这些概念是热力学定律的基础。例如，理想气体定律描述了气体的行为，依赖于温度以开尔文为单位测量。同样，在化学中，反应往往依赖于温度，使用开尔文温标可以确保科学家能够准确预测反应速率和平衡。在工程学中，开尔文温标也很重要。许多工程应用需要精确的温度测量，尤其是在材料科学和电子学等领域。例如，半导体的性能与温度高度相关，工程师在设计能够在各种温度下高效运行的电路时必须考虑开尔文温标。此外，开尔文温标在天体物理学和宇宙学中也发挥着重要作用。研究宇宙的科学家经常处理极低的温度，例如在深空中发现的温度。开尔文温标使天文学家能够准确表达这些温度，从而帮助理解宇宙现象。例如，宇宙微波背景辐射是大爆炸的遗迹，其温度约为2.7 K，在开尔文温标上。总之，开尔文温标是一个基本的温度标度，在科学界中不可或缺。它的绝对性、与其他标度的易于转换以及在各个领域的广泛适用性，使其成为研究人员和工程师的重要工具。理解开尔文温标不仅增强了我们对温度的理解，还加深了我们对周围物理世界的理解。随着我们继续探索宇宙的奥秘，开尔文温标无疑将继续在我们的科学努力中扮演关键角色。