graham's law

简明释义

格拉哈姆定律

英英释义

例句

1.When comparing oxygen and nitrogen, Graham's Law indicates that oxygen will diffuse more slowly.

在比较氧气和氮气时，格雷厄姆定律表明氧气的扩散速度会更慢。

2.Using Graham's Law, we can calculate the relative rates of diffusion for different gases.

利用格雷厄姆定律，我们可以计算不同气体的相对扩散速率。

3.According to Graham's Law, lighter gases diffuse faster than heavier gases.

根据格雷厄姆定律，较轻的气体扩散速度比较重的气体快。

4.The concept of Graham's Law is crucial for understanding gas behavior in chemistry.

格雷厄姆定律的概念对于理解化学中气体行为至关重要。

5.In a laboratory experiment, we observed that the rate of effusion of helium followed Graham's Law.

在实验室实验中，我们观察到氦气的逸出速率遵循格雷厄姆定律。

作文

Graham's law is a principle in chemistry that describes the behavior of gas diffusion. It states that the rate of effusion or diffusion of a gas is inversely proportional to the square root of its molar mass. This means that lighter gases will diffuse faster than heavier gases. The formula for Graham's law (格雷厄姆定律) can be expressed as: Rate1/Rate2 = √(Molar Mass2/Molar Mass1). This relationship is crucial in understanding how different gases interact and spread in various environments.To illustrate this concept, consider two gases: hydrogen and oxygen. Hydrogen has a molar mass of about 2 g/mol, while oxygen has a molar mass of approximately 32 g/mol. According to Graham's law (格雷厄姆定律), hydrogen will diffuse much faster than oxygen due to its lower molar mass. In practical terms, if a balloon filled with hydrogen and another filled with oxygen are released into the air, the hydrogen balloon will deflate more quickly than the oxygen balloon. This phenomenon can be observed in everyday life, such as when helium balloons float away faster than regular air-filled balloons.Understanding Graham's law (格雷厄姆定律) is essential not only for chemists but also for industries that rely on gas separation technologies, including environmental science, medicine, and engineering. For example, in the medical field, knowing how gases diffuse through tissues can help in designing better respiratory therapies. Similarly, in environmental science, the diffusion rates of pollutants can be predicted using this law, aiding in the assessment of air quality and the design of effective filtration systems.Moreover, Graham's law (格雷厄姆定律) highlights the importance of molecular weight in gas behavior. This principle can also be applied to real-world situations, such as the way fragrances disperse in the air. Lighter fragrance molecules will spread more rapidly compared to heavier ones, which is why some scents seem to fill a room more quickly than others.In conclusion, Graham's law (格雷厄姆定律) provides valuable insights into the behavior of gases and their diffusion rates based on molecular weight. It serves as a fundamental concept in chemistry and has significant implications across various fields. Understanding this law enables scientists and professionals to predict how gases will behave under different conditions, ultimately leading to advancements in technology and improvements in health and safety. As we continue to explore the properties of gases, Graham's law (格雷厄姆定律) remains a cornerstone of our understanding of the gaseous state of matter.

格雷厄姆定律是化学中的一个原理，描述了气体扩散的行为。它指出，气体的逸出或扩散速率与其摩尔质量的平方根成反比。这意味着较轻的气体会比较重的气体扩散得更快。格雷厄姆定律的公式可以表示为：Rate1/Rate2 = √(Molar Mass2/Molar Mass1)。这种关系对于理解不同气体在各种环境中如何相互作用和扩散至关重要。为了说明这一概念，考虑两种气体：氢气和氧气。氢气的摩尔质量约为2 g/mol，而氧气的摩尔质量约为32 g/mol。根据格雷厄姆定律，氢气将比氧气扩散得更快，因为它的摩尔质量较低。在实际生活中，如果一个充满氢气的气球和一个充满氧气的气球被释放到空气中，氢气气球将比氧气气球更快地放气。这种现象可以在日常生活中观察到，例如，当氦气球比普通的空气气球更快飘走时。理解格雷厄姆定律不仅对化学家至关重要，还对依赖气体分离技术的行业（包括环境科学、医学和工程）至关重要。例如，在医学领域，了解气体如何通过组织扩散可以帮助设计更好的呼吸疗法。同样，在环境科学中，可以利用这一规律预测污染物的扩散速率，从而有助于评估空气质量和设计有效的过滤系统。此外，格雷厄姆定律强调了分子量在气体行为中的重要性。这个原理也可以应用于现实世界的情况，例如香水在空气中扩散的方式。较轻的香味分子会比较重的香味分子扩散得更快，这就是为什么有些气味似乎比其他气味更快地充满房间。总之，格雷厄姆定律为气体的行为及其基于分子重量的扩散速率提供了宝贵的见解。它作为化学中的一个基本概念，对各个领域具有重要意义。理解这一规律使科学家和专业人士能够预测气体在不同条件下的行为，最终促进技术进步和健康安全的改善。随着我们继续探索气体的性质，格雷厄姆定律仍然是我们理解气体状态物质的基石。