normal pressure and temperature

简明释义

正常压力和温度

英英释义

Normal pressure and temperature (NPT) refer to standard conditions commonly used in scientific experiments and calculations, typically defined as a pressure of 1 atmosphere (101.3 kPa) and a temperature of 0 degrees Celsius (273.15 K).

正常压力和温度(NPT)指的是在科学实验和计算中常用的标准条件,通常定义为1个大气压(101.3 kPa)和0摄氏度(273.15 K)的温度。

例句

1.At normal pressure and temperature, most metals are solid.

正常压力和温度下,大多数金属是固体。

2.The density of gases can vary significantly from normal pressure and temperature.

气体的密度可以与正常压力和温度有显著差异。

3.The ideal gas law is often applied under normal pressure and temperature conditions.

理想气体定律通常在正常压力和温度条件下应用。

4.Water boils at 100 degrees Celsius at normal pressure and temperature.

正常压力和温度下,水在100摄氏度时沸腾。

5.Chemical reactions may proceed differently at normal pressure and temperature compared to high pressure.

化学反应在正常压力和温度下与高压下可能有所不同。

作文

In the field of science, especially in chemistry and physics, understanding the concept of normal pressure and temperature is crucial for various experiments and processes. Normal pressure and temperature refers to a standard set of conditions under which measurements are taken, typically defined as 1 atmosphere (atm) of pressure and a temperature of 0 degrees Celsius (32 degrees Fahrenheit). These conditions provide a baseline that allows scientists to compare different experiments and results effectively.When conducting experiments, scientists often need to ensure that the conditions remain consistent. For instance, reactions that occur at normal pressure and temperature can yield predictable outcomes, making it easier to replicate results. This is particularly important in fields like thermodynamics, where the behavior of gases and liquids can vary significantly with changes in pressure and temperature.One of the most significant applications of normal pressure and temperature is in the Ideal Gas Law, which states that the pressure of a gas is directly proportional to its temperature when volume is held constant. By using normal pressure and temperature as reference points, scientists can make calculations about how gases will behave under different conditions. This law is foundational for understanding many physical phenomena and is widely used in engineering and environmental science.Additionally, the concept of normal pressure and temperature is vital in the field of material science. When testing materials, knowing how they react under standard conditions helps researchers determine their properties and potential applications. For example, the tensile strength of a metal might be measured at normal pressure and temperature to establish a baseline for its performance in real-world applications.Moreover, in the realm of chemical reactions, normal pressure and temperature play a key role in determining reaction rates and equilibrium. Many reactions are studied under these standard conditions to establish kinetic parameters, which can then be adjusted for real-life scenarios where pressure and temperature may differ. Understanding how these factors influence reactions allows chemists to optimize processes in industrial settings, such as the production of pharmaceuticals or petrochemicals.In conclusion, the term normal pressure and temperature is more than just a scientific standard; it is a fundamental concept that underpins much of modern science and engineering. By providing a common reference point, normal pressure and temperature enables researchers and engineers to communicate effectively about their findings and ensures that experimental results can be reliably replicated and compared. As we continue to explore the complexities of our physical world, maintaining an understanding of normal pressure and temperature will remain essential for advancing scientific knowledge and technological innovation.

在科学领域,特别是在化学和物理学中,理解“正常压力和温度”的概念对各种实验和过程至关重要。“正常压力和温度”是指在进行测量时所遵循的一组标准条件,通常定义为1个大气压(atm)的压力和0摄氏度(32华氏度)的温度。这些条件提供了一个基线,使科学家能够有效比较不同实验和结果。在进行实验时,科学家通常需要确保条件保持一致。例如,在“正常压力和温度”下发生的反应可以产生可预测的结果,从而更容易复制结果。这在热力学等领域尤为重要,因为气体和液体的行为在压力和温度变化时可能会显著不同。“正常压力和温度”的一个重要应用是在理想气体定律中,该定律指出,当体积保持不变时,气体的压力与其温度成正比。通过使用“正常压力和温度”作为参考点,科学家可以计算气体在不同条件下的行为。该定律是理解许多物理现象的基础,并广泛应用于工程和环境科学中。此外,“正常压力和温度”的概念在材料科学领域也至关重要。在测试材料时,了解它们在标准条件下的反应有助于研究人员确定其特性和潜在应用。例如,金属的抗拉强度可能在“正常压力和温度”下测量,以建立其在现实应用中的性能基线。此外,在化学反应领域,“正常压力和温度”在确定反应速率和化学平衡方面发挥着关键作用。许多反应在这些标准条件下进行研究,以建立动力学参数,然后可以针对压力和温度可能不同的实际场景进行调整。了解这些因素如何影响反应使化学家能够优化工业设置中的过程,例如药品或石油化学品的生产。总之,“正常压力和温度”这一术语不仅仅是一个科学标准;它是现代科学和工程的基本概念。通过提供一个共同的参考点,“正常压力和温度”使研究人员和工程师能够有效地交流他们的发现,并确保实验结果可以可靠地复制和比较。随着我们继续探索物理世界的复杂性,保持对“正常压力和温度”的理解将对推动科学知识和技术创新至关重要。

相关单词

pressure

pressure详解:怎么读、什么意思、用法

and

and详解:怎么读、什么意思、用法

temperature

temperature详解:怎么读、什么意思、用法