degree kelvin

简明释义

开耳芬度数

英英释义

例句

1.The temperature of the universe is approximately 2.7 degree kelvin.

宇宙的温度大约是2.7开尔文度。

2.In scientific experiments, temperatures are often measured in degree kelvin.

在科学实验中，温度通常以开尔文度为单位测量。

3.The boiling point of water is 373.15 degree kelvin.

水的沸点是373.15开尔文度。

4.Engine efficiency can be affected by the temperature in degree kelvin.

发动机效率可能会受到开尔文度温度的影响。

5.Absolute zero is defined as 0 degree kelvin.

绝对零度被定义为0开尔文度。

作文

The concept of temperature is fundamental in the fields of science and engineering. One of the most important units of temperature measurement is the degree kelvin, which is often used in scientific contexts. The degree kelvin is the SI unit of temperature and is crucial for understanding thermodynamics, a branch of physics that deals with heat and temperature and their relation to energy and work.In practical terms, the degree kelvin is defined as the fraction 1/273.16 of the thermodynamic temperature of the triple point of water, which is the unique combination of temperature and pressure at which water can coexist in three phases: solid, liquid, and gas. This definition makes the degree kelvin an absolute temperature scale, starting from absolute zero, which is 0 K. At absolute zero, the motion of atoms theoretically comes to a complete stop, representing the lowest possible temperature.Unlike Celsius or Fahrenheit, the degree kelvin does not use degrees in its measurement. Instead, it simply uses the term 'kelvin' to denote the unit. This distinction is important because the degree kelvin is primarily used in scientific research where precise measurements are required. For example, when conducting experiments in cryogenics, researchers must operate at temperatures measured in degree kelvin to ensure accurate results. One of the key advantages of using the degree kelvin is its direct correlation to energy. The change in temperature by one degree kelvin corresponds to a change in thermal energy, making it easier for scientists to calculate energy transfer in various processes. This is particularly useful in fields like astrophysics, where understanding the temperature of celestial bodies is essential for studying their composition and behavior.In addition to its importance in scientific research, the degree kelvin also plays a significant role in everyday applications, such as in the field of lighting. The color temperature of light sources, measured in degree kelvin, affects how we perceive light. For instance, a warm light bulb may have a color temperature of around 2700 K, while daylight can reach up to 6500 K. Understanding these differences helps consumers choose the right lighting for their homes and workplaces.In conclusion, the degree kelvin is more than just a unit of measurement; it is a vital tool that helps us understand and quantify temperature in a variety of scientific and practical applications. From the depths of space to the comfort of our homes, the degree kelvin provides a standardized way to measure and communicate temperature, making it indispensable in modern science and technology.

温度的概念在科学和工程领域中至关重要。最重要的温度测量单位之一是开尔文度，它通常在科学上下文中使用。开尔文度是国际单位制（SI）中的温度单位，对于理解热力学非常关键，热力学是物理学的一个分支，涉及热量和温度及其与能量和工作的关系。在实际应用中，开尔文度定义为水三相点热力学温度的273.16分之一，这是水能够在固态、液态和气态三种相态共存的独特温度和压力组合。这个定义使得开尔文度成为绝对温度标尺，从绝对零度开始，即0 K。在绝对零度下，原子的运动理论上会完全停止，代表着可能的最低温度。与摄氏度或华氏度不同，开尔文度在测量中不使用度数。相反，它仅用“开尔文”一词来表示单位。这一点很重要，因为开尔文度主要用于科学研究中，需要精确测量。例如，在进行低温物理实验时，研究人员必须以开尔文度为单位进行操作，以确保结果的准确性。使用开尔文度的一个主要优点是它与能量的直接关联。温度变化一个开尔文度对应于热能的变化，这使得科学家更容易计算各种过程中的能量转移。这在天体物理学等领域尤为重要，因为了解天体的温度对于研究其组成和行为至关重要。除了在科学研究中的重要性外，开尔文度在日常应用中也发挥着重要作用，例如在照明领域。光源的色温以开尔文度为单位影响我们对光的感知。例如，暖色灯泡的色温可能在2700 K左右，而日光的色温可以达到6500 K。理解这些差异有助于消费者选择适合自己家庭和工作场所的照明。总之，开尔文度不仅仅是一个测量单位；它是一个重要工具，帮助我们理解和量化各种科学和实用应用中的温度。从太空的深处到我们家中的舒适环境，开尔文度提供了一种标准化的方式来测量和传达温度，使其在现代科学和技术中不可或缺。