law of multiple proportions

简明释义

倍比律

英英释义

例句

1.The law of multiple proportions helps to determine the empirical formula of a compound.

多重比例定律有助于确定化合物的经验公式。

2.Chemists often refer to the law of multiple proportions when explaining the different compounds formed by carbon and oxygen.

化学家在解释碳和氧形成的不同化合物时，常常提到多重比例定律。

3.In organic chemistry, the law of multiple proportions can be observed in the various hydrocarbons formed from carbon and hydrogen.

在有机化学中，可以在由碳和氢形成的各种烃中观察到多重比例定律。

4.Understanding the law of multiple proportions is crucial for students studying chemical reactions.

理解多重比例定律对于学习化学反应的学生来说至关重要。

5.The law of multiple proportions states that when two elements form more than one compound, the masses of one element that combine with a fixed mass of the other are in ratios of small whole numbers.

多重比例定律指出，当两种元素形成多个化合物时，固定质量的一个元素与另一个元素结合的质量比是小整数的比率。

作文

The field of chemistry is filled with various laws and principles that help us understand the composition and behavior of matter. One of the fundamental concepts in this discipline is the law of multiple proportions, which provides crucial insight into how elements combine to form compounds. This law states that when two elements can combine to form more than one compound, the different masses of one element that combine with a fixed mass of the other element are in ratios of small whole numbers. This principle was first formulated by John Dalton in the early 19th century and has since played a vital role in the development of atomic theory.To illustrate the law of multiple proportions, let’s consider the example of carbon and oxygen. These two elements can combine to form two distinct compounds: carbon monoxide (CO) and carbon dioxide (CO2). In carbon monoxide, one atom of carbon combines with one atom of oxygen, while in carbon dioxide, one atom of carbon combines with two atoms of oxygen. If we take a fixed mass of carbon, say 12 grams, we can see that it combines with 16 grams of oxygen in CO and 32 grams of oxygen in CO2. The ratio of the masses of oxygen that combine with the same mass of carbon is 16:32, which simplifies to 1:2, demonstrating the law of multiple proportions. This simple yet profound relationship highlights the fact that chemical compounds are not formed arbitrarily; rather, they follow specific rules based on the ratios of the elements involved.Understanding the law of multiple proportions is essential for chemists as it aids in predicting the formation of compounds and understanding their properties. It also reinforces the idea of atomic theory, which posits that matter is made up of indivisible particles called atoms. Each element consists of unique atoms that can combine in various ways to create different substances. This concept is foundational to the study of chemistry and helps explain why certain compounds behave differently from others, even if they contain the same elements.Moreover, the law of multiple proportions has significant implications in various fields, including pharmaceuticals, materials science, and environmental chemistry. For instance, when developing new medications, chemists must understand how different elements interact and combine to ensure that the resulting compounds are safe and effective. Similarly, in materials science, the law helps researchers design new materials with specific properties by controlling the ratios of the elements involved.In conclusion, the law of multiple proportions is a fundamental principle in chemistry that illustrates how elements combine to form compounds in fixed ratios. This law not only enhances our understanding of chemical reactions but also underpins many practical applications in science and industry. By grasping the significance of this law, students and professionals alike can appreciate the intricacies of chemical interactions and the beauty of the natural world. As we continue to explore the complexities of matter, the law of multiple proportions will remain a cornerstone of our understanding of chemistry and its myriad applications.

化学领域充满了各种法则和原理，帮助我们理解物质的组成和行为。其中一个基本概念是多重比例定律，它为我们提供了关于元素如何结合形成化合物的重要见解。该定律指出，当两个元素可以结合形成多个化合物时，与固定质量的另一个元素结合的一个元素的不同质量之间的比例是小的整数比。这个原则最早由约翰·道尔顿在19世纪初提出，并且在原子理论的发展中发挥了至关重要的作用。为了说明多重比例定律，我们可以考虑碳和氧的例子。这两种元素可以结合形成两种不同的化合物：一氧化碳（CO）和二氧化碳（CO2）。在一氧化碳中，一个碳原子与一个氧原子结合，而在二氧化碳中，一个碳原子与两个氧原子结合。如果我们取固定质量的碳，比如12克，我们可以看到它与16克氧气结合形成CO，而与32克氧气结合形成CO2。与相同质量的碳结合的氧的质量比为16:32，简化后为1:2，这证明了多重比例定律。这个简单而深刻的关系突显了化合物的形成并不是任意的；相反，它们遵循基于所涉及元素比例的特定规则。理解多重比例定律对化学家来说至关重要，因为它有助于预测化合物的形成并理解其性质。它也加强了原子理论的理念，即物质是由称为原子的不可分割的粒子组成。每种元素都由独特的原子组成，这些原子可以以不同的方式结合，形成不同的物质。这个概念是化学研究的基础，帮助解释为什么某些化合物的行为与其他化合物不同，即使它们包含相同的元素。此外，多重比例定律在制药、材料科学和环境化学等多个领域具有重要意义。例如，在开发新药物时，化学家必须了解不同元素如何相互作用和结合，以确保所产生的化合物安全有效。同样，在材料科学中，该法则帮助研究人员通过控制所涉及元素的比例来设计具有特定性质的新材料。总之，多重比例定律是化学中的一个基本原则，说明了元素如何以固定比例结合形成化合物。该法则不仅增强了我们对化学反应的理解，而且支撑了科学和工业中的许多实际应用。通过掌握这一法则的意义，学生和专业人士都能欣赏到化学相互作用的复杂性以及自然界的美丽。当我们继续探索物质的复杂性时，多重比例定律将始终是我们理解化学及其众多应用的基石。