diatomic molecule

简明释义

二原子分子

英英释义

例句

1.Oxygen (O2) is a common example of a diatomic molecule that is essential for human respiration.

氧气 (O2) 是一个常见的双原子分子，对人类呼吸至关重要。

2.The bond between the two atoms in a diatomic molecule can be a single, double, or triple bond.

在双原子分子中，两个原子之间的键可以是单键、双键或三键。

3.Nitrogen, which makes up about 78% of the Earth's atmosphere, exists as a diatomic molecule (N2).

氮气占地球大气的约78%，以双原子分子 (N2) 的形式存在。

4.Hydrogen gas (H2) is another example of a diatomic molecule, which is highly flammable.

氢气 (H2) 是另一个例子，它是一种高度易燃的双原子分子。

5.A diatomic molecule is a molecule composed of two atoms, which can be the same or different.

一个双原子分子是由两个原子组成的分子，这两个原子可以相同或不同。

作文

In the field of chemistry, understanding the fundamental building blocks of matter is crucial. One essential concept that students often encounter is the notion of a diatomic molecule. A diatomic molecule is defined as a molecule that consists of two atoms, which can be either of the same or different elements. This concept is significant because it helps to explain the behavior of gases, the formation of compounds, and the principles of chemical bonding. For instance, common examples of diatomic molecules include oxygen (O2), nitrogen (N2), and hydrogen (H2). Each of these molecules plays a vital role in various biological and physical processes. Oxygen, for example, is essential for respiration in living organisms, while nitrogen is a key component of the atmosphere, making up approximately 78% of it. The formation of a diatomic molecule typically occurs through covalent bonding, where two atoms share electrons to achieve a more stable electronic configuration. This bond can be single, double, or even triple, depending on the number of electron pairs shared between the atoms. For example, in an O2 molecule, two oxygen atoms share two pairs of electrons, resulting in a double bond. Understanding diatomic molecules is also pivotal when studying the states of matter. Gases, which are often composed of diatomic molecules, exhibit unique properties such as low density and high compressibility. The kinetic molecular theory explains how the motion of these molecules affects gas behavior. As temperature increases, the kinetic energy of the diatomic molecules rises, leading to increased movement and, consequently, a higher pressure if the volume is kept constant. Moreover, diatomic molecules can participate in various chemical reactions, including combustion and synthesis reactions. For example, when hydrogen gas (H2) reacts with oxygen gas (O2), it produces water (H2O), a reaction that releases a significant amount of energy. This reaction is not only fundamental in chemistry but also has practical applications in energy production and propulsion systems. On a broader scale, the study of diatomic molecules contributes to our understanding of atmospheric chemistry and environmental science. The interactions between diatomic molecules, such as those involved in greenhouse gas effects, are critical in understanding climate change. For instance, carbon dioxide (CO2), although not a diatomic molecule, interacts with diatomic molecules in the atmosphere, influencing temperature and weather patterns. In conclusion, the concept of a diatomic molecule is a fundamental aspect of chemistry that has far-reaching implications across various scientific disciplines. By grasping the characteristics and behaviors of diatomic molecules, students can better appreciate the complexity of chemical interactions and their relevance to everyday life. Whether it’s through the air we breathe or the chemical reactions that power our world, diatomic molecules are integral to our understanding of the universe.

在化学领域，理解物质的基本构建块至关重要。学生经常遇到的一个基本概念是双原子分子的概念。双原子分子被定义为由两个原子组成的分子，这些原子可以是相同或不同的元素。这个概念非常重要，因为它有助于解释气体的行为、化合物的形成以及化学键的原理。 例如，双原子分子的常见例子包括氧气（O2）、氮气（N2）和氢气（H2）。这些分子在各种生物和物理过程中都发挥着重要作用。例如，氧气是生物体呼吸所必需的，而氮气是大气中的关键成分，约占其78%。双原子分子的形成通常通过共价键发生，其中两个原子共享电子以实现更稳定的电子构型。这种键可以是单键、双键甚至三键，具体取决于原子之间共享的电子对数量。例如，在O2分子中，两个氧原子共享两对电子，从而形成双键。理解双原子分子在研究物质状态时也至关重要。气体通常由双原子分子组成，展现出低密度和高可压缩性等独特性质。动理论解释了这些分子的运动如何影响气体行为。随着温度的升高，双原子分子的动能上升，导致运动增加，因此如果体积保持不变，压力会升高。此外，双原子分子可以参与各种化学反应，包括燃烧和合成反应。例如，当氢气（H2）与氧气（O2）反应时，会产生水（H2O），这一反应释放出大量能量。该反应不仅在化学中是基础的，而且在能源生产和推进系统中具有实际应用。从更广泛的角度来看，双原子分子的研究有助于我们理解大气化学和环境科学。双原子分子之间的相互作用，例如与温室气体效应相关的相互作用，对于理解气候变化至关重要。例如，二氧化碳（CO2）虽然不是双原子分子，但与大气中的双原子分子相互作用，影响温度和天气模式。总之，双原子分子的概念是化学的一个基本方面，对各个科学学科有着深远的影响。通过掌握双原子分子的特征和行为，学生可以更好地欣赏化学相互作用的复杂性及其与日常生活的相关性。无论是通过我们呼吸的空气还是推动我们世界的化学反应，双原子分子都是我们理解宇宙不可或缺的一部分。