standard temperature and pressure

简明释义

标准温度和压力标准温度与压力

英英释义

例句

1.The volume of a gas is often measured at standard temperature and pressure, which is defined as 0 degrees Celsius and 1 atmosphere of pressure.

气体的体积通常在标准温度和压力下测量，定义为0摄氏度和1个大气压。

2.When calculating the ideal gas law, it is essential to use standard temperature and pressure for accurate results.

在计算理想气体定律时，使用标准温度和压力是确保结果准确的关键。

3.In chemistry, reactions are frequently performed under standard temperature and pressure to ensure consistent results.

在化学中，反应通常在标准温度和压力下进行，以确保结果的一致性。

4.Many scientific experiments require measurements to be taken at standard temperature and pressure to eliminate variables.

许多科学实验要求在标准温度和压力下进行测量，以消除变量。

5.The density of gases is typically reported at standard temperature and pressure for standardization purposes.

气体的密度通常在标准温度和压力下报告，以便于标准化。

作文

In the field of science, particularly chemistry and physics, it is crucial to have a common reference point for measurements. One such reference point that is widely used is known as standard temperature and pressure. This term refers to a set of conditions that are standardized to allow scientists to compare their results consistently across different experiments and studies. Specifically, standard temperature and pressure is defined as a temperature of 0 degrees Celsius (273.15 Kelvin) and a pressure of 1 atmosphere (101.325 kPa). These conditions provide a baseline for various calculations and experiments, especially when dealing with gases.Understanding standard temperature and pressure is essential for anyone studying gas laws, as these laws describe how gases behave under different conditions. For instance, Boyle's Law states that the pressure of a gas is inversely proportional to its volume when temperature remains constant. When conducting experiments, scientists often refer to standard temperature and pressure to ensure that their results are comparable to those obtained by others.Moreover, the concept of standard temperature and pressure is not only limited to theoretical studies but also has practical applications in various industries. For example, in the field of meteorology, atmospheric pressure and temperature readings are often adjusted to standard temperature and pressure to provide more accurate forecasts and analyses. Similarly, in engineering, materials are tested under standard temperature and pressure to evaluate their performance and safety in different environments.Furthermore, using standard temperature and pressure allows researchers to calculate the molar volume of an ideal gas, which is approximately 22.4 liters at these conditions. This is a fundamental concept in chemistry that aids in stoichiometric calculations, allowing chemists to predict how much product will be formed in a chemical reaction based on the amounts of reactants used.In conclusion, the term standard temperature and pressure plays a vital role in scientific research and practical applications. By providing a consistent framework for measurements, it enables scientists and engineers to communicate their findings effectively and ensures that experiments can be replicated accurately. Understanding this concept is essential for anyone involved in the sciences, as it lays the groundwork for more advanced studies and applications in various fields. Whether in a laboratory or an industrial setting, the principles associated with standard temperature and pressure remain fundamental to the understanding and manipulation of gases and their behaviors.

在科学领域，特别是化学和物理学中，拥有一个共同的测量参考点至关重要。一个广泛使用的参考点被称为标准温度和压力。这个术语指的是一组标准化的条件，以便科学家能够在不同实验和研究中一致地比较他们的结果。具体而言，标准温度和压力被定义为0摄氏度（273.15开尔文）的温度和1个大气压（101.325千帕）的压力。这些条件为各种计算和实验提供了基准，尤其是在处理气体时。理解标准温度和压力对于任何研究气体定律的人来说都是必不可少的，因为这些定律描述了气体在不同条件下的行为。例如，玻意耳定律指出，在温度保持不变的情况下，气体的压力与其体积成反比。在进行实验时，科学家通常会参考标准温度和压力以确保他们的结果可以与他人获得的结果进行比较。此外，标准温度和压力的概念不仅限于理论研究，还在各个行业中具有实际应用。例如，在气象学领域，大气压力和温度读数通常会调整为标准温度和压力，以提供更准确的预测和分析。同样，在工程学中，材料在标准温度和压力下进行测试，以评估它们在不同环境中的性能和安全性。此外，使用标准温度和压力允许研究人员计算理想气体的摩尔体积，在这些条件下大约为22.4升。这是化学中的一个基本概念，有助于进行化学计量计算，使化学家能够根据所用反应物的数量预测将形成多少产品。总之，术语标准温度和压力在科学研究和实际应用中发挥着至关重要的作用。通过提供一致的测量框架，它使科学家和工程师能够有效地传达他们的发现，并确保实验能够准确复制。理解这一概念对于任何参与科学工作的人来说都是必不可少的，因为它为更高级的研究和在各个领域的应用奠定了基础。无论是在实验室还是工业环境中，与标准温度和压力相关的原则仍然是理解和操控气体及其行为的基础。