degree Kelvin

简明释义

开尔文

英英释义

例句

1.The boiling point of liquid nitrogen is around 77 degree Kelvin.

液氮的沸点大约是77开尔文度。

2.The absolute zero is defined as 0 degree Kelvin.

绝对零度被定义为0开尔文度。

3.Water freezes at 273.15 degree Kelvin.

水在273.15开尔文度时结冰。

4.In astrophysics, temperatures can reach millions of degree Kelvin in stars.

在天体物理学中，恒星的温度可以达到数百万开尔文度。

5.The temperature in the lab was set to 300 degree Kelvin.

实验室的温度设定为300开尔文度。

作文

The concept of temperature is fundamental to many scientific disciplines, and one of the most important temperature scales used in science is the Kelvin scale. The unit of measurement in this scale is known as degree Kelvin, which is often abbreviated as K. Unlike the Celsius and Fahrenheit scales, which are based on specific points such as the freezing and boiling points of water, the Kelvin scale is an absolute temperature scale. This means it starts at absolute zero, the point at which all molecular motion ceases, measured to be 0 K or 绝对零度. Understanding the degree Kelvin is essential for various scientific calculations, particularly in fields like physics and chemistry. For instance, the gas laws, which describe the behavior of gases, use temperature in Kelvin to ensure accuracy. The ideal gas law, PV = nRT, requires the temperature to be in Kelvin. If we were to use Celsius or Fahrenheit, the calculations would yield incorrect results because these scales do not start from absolute zero. In everyday life, we may not frequently encounter the degree Kelvin directly, but its applications are vast. For instance, scientists working with thermodynamics must convert temperatures into Kelvin when performing calculations involving heat transfer and energy. Similarly, astronomers use the Kelvin scale to measure the temperature of stars and other celestial bodies. A star's color can provide insights into its temperature, which is usually expressed in Kelvin. For example, a cooler star might have a temperature of around 3,000 K, while a hotter star could exceed 10,000 K. Moreover, the degree Kelvin is crucial in the field of cryogenics, where scientists study materials at extremely low temperatures. Understanding how materials behave at near-zero temperatures can lead to advancements in technology, such as superconductors that can conduct electricity without resistance. These materials often need to be cooled to temperatures measured in Kelvins, sometimes reaching only a few degrees above 0 K. One interesting aspect of the degree Kelvin is its relationship with other temperature scales. For instance, the conversion between Celsius and Kelvin is straightforward: to convert Celsius to Kelvin, you simply add 273.15. This conversion is essential in scientific research and industry where precision is paramount. In conclusion, the degree Kelvin is more than just a unit of measurement; it is a critical component of scientific inquiry and technological advancement. Its importance spans across various fields, from basic physics to advanced engineering. By understanding the degree Kelvin, we gain insight into the fundamental principles that govern our world, enabling us to innovate and explore the universe in ways that were previously unimaginable.

温度的概念在许多科学学科中是基础性的，而科学中使用的最重要的温度尺度之一就是开尔文尺度。这个尺度中的测量单位被称为degree Kelvin，通常缩写为K。与基于特定点（如水的冰点和沸点）的摄氏和华氏尺度不同，开尔文尺度是一个绝对温度尺度。这意味着它从绝对零度开始，即所有分子运动停止的点，测量为0 K或绝对零度。理解degree Kelvin对于许多科学计算至关重要，特别是在物理和化学等领域。例如，描述气体行为的气体法则使用开尔文温度以确保准确性。理想气体法则PV = nRT要求温度以开尔文为单位。如果我们使用摄氏或华氏，计算结果将不正确，因为这些尺度并不是从绝对零开始的。在日常生活中，我们可能不会直接遇到degree Kelvin，但它的应用是广泛的。例如，在热力学中工作的科学家必须在进行涉及热传递和能量的计算时将温度转换为开尔文。同样，天文学家使用开尔文尺度来测量恒星和其他天体的温度。恒星的颜色可以提供关于其温度的见解，通常用开尔文表示。例如，一颗较冷的恒星的温度可能在3000 K左右，而一颗较热的恒星的温度可能超过10000 K。此外，degree Kelvin在低温学领域也至关重要，科学家们研究极低温下材料的行为。理解材料在接近零度的温度下的行为可以推动技术进步，例如超导体，可以无阻力地导电。这些材料通常需要冷却到以开尔文为单位的温度，有时达到仅比0 K高几度。degree Kelvin的一个有趣方面是它与其他温度尺度的关系。例如，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。这种转换在科学研究和工业中至关重要，因为精确性至关重要。总之，degree Kelvin不仅仅是一个测量单位；它是科学探究和技术进步的关键组成部分。它的重要性跨越了多个领域，从基础物理到先进工程。通过理解degree Kelvin，我们获得了对支配我们世界的基本原理的洞察，使我们能够以前所未有的方式创新和探索宇宙。