excited state

简明释义

激励状态

英英释义

例句

1.When exposed to ultraviolet light, some materials enter an excited state 激发态 and emit visible light.

当暴露在紫外光下时，一些材料进入excited state 激发态并发出可见光。

2.Scientists can manipulate the excited state 激发态 of molecules to create new materials.

科学家可以操控分子的excited state 激发态来创造新材料。

3.The excited state 激发态 can lead to various chemical reactions in photochemistry.

在光化学中，excited state 激发态可以导致各种化学反应。

4.The excited state 激发态 of the atom is often short-lived before it returns to its ground state.

原子的excited state 激发态通常是短暂的，然后返回到基态。

5.In quantum mechanics, an electron can be found in an excited state 激发态 when it absorbs energy.

在量子力学中，当电子吸收能量时，可以处于excited state 激发态。

作文

In the realm of physics and chemistry, the concept of an excited state refers to a condition in which an atom or molecule has absorbed energy and transitioned to a higher energy level. This phenomenon is crucial for understanding various processes, including chemical reactions and the behavior of light. When an electron within an atom absorbs energy, it can move from its ground state, the lowest energy level, to an excited state, which is a temporary condition. The excited state is not stable; therefore, the atom will eventually return to its ground state, often releasing energy in the form of light or heat during this transition.The significance of the excited state can be observed in everyday life. For instance, fluorescent lights operate on this principle. When electricity passes through the gas inside the bulb, it energizes the atoms, causing them to enter an excited state. As these atoms revert to their ground state, they emit photons, which produce visible light. This process illustrates how the excited state can be harnessed for practical applications.Moreover, the excited state plays a pivotal role in photosynthesis, the process by which plants convert light energy into chemical energy. Chlorophyll molecules absorb sunlight, promoting electrons to an excited state. This energy is then used to transform carbon dioxide and water into glucose and oxygen, sustaining the plant's growth and contributing to the ecosystem.In the field of quantum mechanics, the excited state also helps explain phenomena such as spectral lines. When atoms are energized, they emit light at specific wavelengths corresponding to the energy difference between the excited state and the ground state. This emission creates a unique spectral fingerprint for each element, allowing scientists to identify substances based on their light emissions.Understanding the excited state is essential for advancements in technology and science. For example, in the development of lasers, the excited state is utilized to produce coherent light. By stimulating atoms to reach an excited state, and then allowing them to return to a lower energy level, a concentrated beam of light is generated. This principle has led to numerous applications, from medical devices to telecommunications.In conclusion, the excited state is a fundamental concept in various scientific disciplines that explains how energy absorption affects the behavior of atoms and molecules. Its implications are far-reaching, influencing everything from natural processes like photosynthesis to technological innovations like lasers. By studying the excited state, we gain valuable insights into the workings of the universe, enhancing our understanding of both nature and technology.

在物理和化学领域，激发态的概念指的是原子或分子吸收能量并过渡到更高能量水平的状态。这种现象对于理解各种过程至关重要，包括化学反应和光的行为。当原子内的电子吸收能量时，它可以从基态（最低能量水平）移动到激发态，这是一种暂时的状态。激发态是不稳定的，因此原子最终会返回到其基态，在此过渡过程中通常会以光或热的形式释放能量。激发态的重要性可以在日常生活中观察到。例如，荧光灯就是基于这一原理运作的。当电流通过灯泡内的气体时，它使原子获得能量，进入激发态。当这些原子回到基态时，它们会发出光子，从而产生可见光。这个过程展示了如何利用激发态来实现实际应用。此外，激发态在光合作用中也发挥着关键作用，这是植物将光能转化为化学能的过程。叶绿素分子吸收阳光，促使电子进入激发态。这种能量随后用于将二氧化碳和水转化为葡萄糖和氧气，维持植物的生长并对生态系统做出贡献。在量子力学领域，激发态还帮助解释光谱线等现象。当原子被激发时，它们以特定波长发射光，这些波长对应于激发态和基态之间的能量差。这种发射为每个元素创建了独特的光谱指纹，使科学家能够根据光的发射识别物质。理解激发态对于技术和科学的进步至关重要。例如，在激光的发展中，激发态被用来产生相干光。通过刺激原子达到激发态，然后让它们返回到较低能量水平，就会产生集中光束。这一原理已导致从医疗设备到电信的众多应用。总之，激发态是各种科学学科中的一个基本概念，解释了能量吸收如何影响原子和分子的行为。它的影响深远，影响从光合作用等自然过程到激光等技术创新。通过研究激发态，我们获得了对宇宙运作的宝贵见解，增强了我们对自然和技术的理解。