normal pressure and temperature

简明释义

额定压力及温度正常压力和温度

英英释义

例句

1.Chemical reactions often have different rates and products at normal pressure and temperature compared to high pressure.

与高压相比，化学反应在正常压力和温度下通常具有不同的速率和产物。

2.In physics, many experiments are conducted at normal pressure and temperature for consistency.

在物理学中，许多实验都是在正常压力和温度下进行的，以保持一致性。

3.The density of a substance can change significantly when it is not at normal pressure and temperature.

当物质不处于正常压力和温度时，其密度可能会显著变化。

4.At normal pressure and temperature, gases behave ideally according to the ideal gas law.

在正常压力和温度下，气体根据理想气体定律表现出理想行为。

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

在正常压力和温度下，水在100摄氏度时沸腾。

作文

In the field of science, particularly in chemistry and physics, understanding the concept of normal pressure and temperature is crucial for conducting experiments and interpreting results. Normal pressure and temperature refer to the standard conditions under which many scientific measurements are taken, specifically a pressure of 1 atmosphere (atm) and a temperature of 0 degrees Celsius (°C) or 273.15 Kelvin (K). These conditions serve as a baseline for comparing different states of matter and their behaviors. When we talk about gases, for instance, the ideal gas law is often applied under normal pressure and temperature. This law states that the product of pressure and volume of a gas is proportional to its temperature, allowing scientists to predict how gases will behave under various conditions. Without a common reference point like normal pressure and temperature, it would be challenging to communicate findings accurately. Moreover, in the context of chemical reactions, normal pressure and temperature provide a consistent environment for reactions to occur. For example, when measuring the rate of a reaction, conducting experiments at normal pressure and temperature ensures that variations in results are due to the reaction itself rather than external factors such as pressure changes or temperature fluctuations. This consistency is vital for validating hypotheses and developing theories. Furthermore, in the realm of thermodynamics, normal pressure and temperature play a significant role in defining the properties of substances. The phase diagram of a substance illustrates its state (solid, liquid, or gas) at varying pressures and temperatures. At normal pressure and temperature, water exists as a liquid, but if the temperature drops below 0°C or the pressure changes significantly, it may freeze into ice or evaporate into vapor. Understanding these transitions is essential for various applications, from meteorology to engineering. In practical applications, industries also rely on normal pressure and temperature for standardizing processes. For instance, in the oil and gas industry, the extraction and transportation of resources are often calculated based on these standard conditions. Engineers must consider normal pressure and temperature when designing pipelines and storage facilities to ensure safety and efficiency. In conclusion, the concept of normal pressure and temperature is fundamental across multiple scientific disciplines. It provides a consistent framework for experimentation, analysis, and application. By understanding and utilizing normal pressure and temperature, scientists and engineers can make informed decisions, predict behaviors, and innovate solutions in various fields. As we continue to explore the intricacies of our physical world, maintaining a grasp of standard conditions will remain essential for advancing our knowledge and technology.

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”的概念对于进行实验和解释结果至关重要。“正常压力和温度”指的是许多科学测量所采用的标准条件，具体来说是1个大气压（atm）和0摄氏度（°C）或273.15开尔文（K）。这些条件作为比较不同物质状态及其行为的基准。例如，当我们谈论气体时，理想气体定律通常是在“正常压力和温度”下应用的。该定律指出，气体的压力与体积的乘积与其温度成正比，使科学家能够预测气体在各种条件下的行为。如果没有像“正常压力和温度”这样共同的参考点，准确沟通研究结果将变得非常困难。此外，在化学反应的背景下，“正常压力和温度”为反应提供了一个一致的环境。例如，在测量反应速率时，在“正常压力和温度”下进行实验可以确保结果的变化是由于反应本身，而不是外部因素如压力变化或温度波动。这种一致性对于验证假设和发展理论至关重要。此外，在热力学领域，“正常压力和温度”在定义物质性质方面也发挥着重要作用。物质的相图展示了其在不同压力和温度下的状态（固态、液态或气态）。在“正常压力和温度”下，水以液态存在，但如果温度降到0°C以下或压力发生显著变化，它可能会结冰成冰块或蒸发成水蒸气。理解这些转变对于从气象学到工程学的各种应用至关重要。在实际应用中，各行业也依赖于“正常压力和温度”来标准化过程。例如，在石油和天然气行业，资源的提取和运输通常基于这些标准条件进行计算。工程师在设计管道和储存设施时必须考虑“正常压力和温度”，以确保安全和效率。总之，“正常压力和温度”的概念在多个科学学科中是基础性的。它为实验、分析和应用提供了一种一致的框架。通过理解和利用“正常压力和温度”，科学家和工程师能够做出明智的决策、预测行为并在各个领域创新解决方案。随着我们继续探索物理世界的复杂性，保持对标准条件的掌握将始终是推动我们知识和技术进步的关键。