Kelvin temperature

简明释义

绝对温度

英英释义

例句

1.In scientific experiments, we often need to convert Celsius to 开尔文温度 for accurate measurements.

在科学实验中，我们常常需要将摄氏度转换为开尔文温度以获得准确的测量。

2.The Kelvin temperature scale starts at absolute zero, which is 0 K.

开尔文温度尺度从绝对零度开始，绝对零度为0 K。

3.The Kelvin temperature is widely used in physics and engineering for thermodynamic calculations.

开尔文温度在物理和工程中广泛用于热力学计算。

4.To calculate the energy of a gas, you can use its Kelvin temperature in the ideal gas law.

要计算气体的能量，可以在理想气体定律中使用其开尔文温度。

5.The boiling point of water is 373.15 K, which is the same as the 开尔文温度 for boiling.

水的沸点是373.15 K，这就是沸腾时的开尔文温度。

作文

The concept of temperature is fundamental in the study of physics and chemistry. It helps us understand the behavior of matter in various states, whether solid, liquid, or gas. One of the most important scales used to measure temperature is the Kelvin scale. The Kelvin temperature is an absolute temperature scale that starts at absolute zero, the point at which all molecular motion ceases. This makes it a crucial scale for scientists as it provides a clear and consistent reference point for thermodynamic calculations.The Kelvin temperature scale was named after the Scottish physicist William Thomson, who was later known as Lord Kelvin. He proposed this scale in the mid-19th century, and it has since become the standard in many scientific fields. Unlike the Celsius and Fahrenheit scales, which are based on arbitrary points such as the freezing and boiling points of water, the Kelvin temperature scale is purely based on physical phenomena.One of the key features of the Kelvin temperature scale is that it does not use negative numbers. Absolute zero, defined as 0 K, is equivalent to -273.15 °C or -459.67 °F. This absence of negative values simplifies many equations in thermodynamics, making it easier to calculate properties such as energy and entropy.In practical applications, the Kelvin temperature is widely used in scientific research, especially in fields like physics, engineering, and astronomy. For example, when studying the behavior of gases at extremely low temperatures, scientists often refer to the Kelvin temperature to express their findings. The ideal gas law, which relates pressure, volume, and temperature, requires temperatures to be expressed in Kelvin to provide accurate results.Moreover, the Kelvin temperature is essential in understanding blackbody radiation and the laws governing thermodynamics. According to Planck's law, the spectral radiance of a black body at thermal equilibrium is directly related to its Kelvin temperature. This relationship is crucial for astrophysics, where the temperatures of stars and other celestial bodies are measured in Kelvin.In everyday life, while we may not commonly use the Kelvin temperature scale, it is nonetheless important in various technologies. For instance, LED lights and other electronic devices often rely on temperature measurements in Kelvin to determine their color temperature, affecting how we perceive light in our homes and workplaces.In conclusion, the Kelvin temperature scale is an essential tool in the scientific community. Its absolute nature allows for more straightforward calculations and a better understanding of the physical world. By grasping the significance of the Kelvin temperature, we can appreciate its role in both theoretical and applied sciences. As we continue to explore the universe and develop new technologies, the Kelvin temperature will remain a vital part of our understanding of temperature and energy dynamics.

温度的概念在物理学和化学的研究中是基础性的。它帮助我们理解物质在固态、液态或气态等不同状态下的行为。用于测量温度的最重要的刻度之一是开尔文（Kelvin）刻度。Kelvin temperature 是一个绝对温度刻度，从绝对零度开始，即所有分子运动停止的点。这使得它成为科学家们的重要刻度，因为它为热力学计算提供了明确且一致的参考点。Kelvin temperature 刻度以苏格兰物理学家威廉·汤姆森（William Thomson）的名字命名，他后来被称为开尔文勋爵。他在19世纪中叶提出了这个刻度，并且它自那时以来已成为许多科学领域的标准。与基于水的冻结点和沸点等任意点的摄氏（Celsius）和华氏（Fahrenheit）刻度不同，Kelvin temperature 刻度完全基于物理现象。Kelvin temperature 刻度的一个关键特征是它不使用负数。绝对零度定义为0 K，相当于-273.15 °C或-459.67 °F。这种负值的缺失简化了热力学中的许多方程，使得计算能量和熵等性质变得更加容易。在实际应用中，Kelvin temperature 被广泛用于科学研究，尤其是在物理学、工程学和天文学等领域。例如，在研究极低温下气体的行为时，科学家通常会引用Kelvin temperature 来表达他们的发现。理想气体定律涉及压力、体积和温度之间的关系，要求将温度以开尔文表示，以便提供准确的结果。此外，Kelvin temperature 在理解黑体辐射和热力学定律方面至关重要。根据普朗克定律，处于热平衡的黑体的光谱辐射与其Kelvin temperature 直接相关。这一关系对于天体物理学至关重要，在那里，恒星和其他天体的温度通常以开尔文为单位进行测量。在日常生活中，尽管我们可能不常用Kelvin temperature 刻度，但它在各种技术中仍然很重要。例如，LED灯和其他电子设备通常依赖于以开尔文为单位的温度测量来确定其色温，从而影响我们在家和工作场所的光线感知。总之，Kelvin temperature 刻度是科学界的一个重要工具。它的绝对性质允许更简单的计算并更好地理解物理世界。通过掌握Kelvin temperature 的意义，我们可以欣赏它在理论和应用科学中的作用。随着我们继续探索宇宙并开发新技术，Kelvin temperature 将继续是我们理解温度和能量动态的重要组成部分。