thermal excitation

简明释义

热激励

英英释义

例句

1.During laser heating, thermal excitation 热激发 leads to increased vibrational energy in the molecules.

在激光加热过程中，thermal excitation 热激发 导致分子振动能量增加。

2.The process of thermal excitation 热激发 is crucial in understanding the behavior of materials at high temperatures.

理解材料在高温下行为的过程中，thermal excitation 热激发 过程至关重要。

3.In semiconductors, thermal excitation 热激发 can create electron-hole pairs that contribute to electrical conductivity.

在半导体中，thermal excitation 热激发 可以产生电子-空穴对，从而促进电导率。

4.The concept of thermal excitation 热激发 is applied in the study of phase transitions in materials.

在材料的相变研究中，thermal excitation 热激发 概念被应用。

5.In astrophysics, thermal excitation 热激发 helps explain the emission spectra of stars.

在天体物理学中，thermal excitation 热激发 有助于解释恒星的发射光谱。

作文

Thermal excitation is a fundamental concept in physics that describes the process by which particles gain energy from heat. In simple terms, it refers to the increase in energy levels of particles due to thermal energy. This phenomenon plays a crucial role in various scientific fields, including chemistry, materials science, and condensed matter physics. Understanding thermal excitation (热激发) is essential for comprehending how materials behave under different temperature conditions.At the atomic level, when a substance is heated, the atoms or molecules within it start to vibrate more vigorously. This increased motion is a direct result of thermal excitation (热激发), where the thermal energy is transferred to the particles, elevating them to higher energy states. For instance, in solids, this can lead to changes in the material's properties, such as conductivity and elasticity. As the temperature rises, the likelihood of these particles reaching an excited state increases, which can significantly alter the physical characteristics of the material.In the realm of chemistry, thermal excitation (热激发) is vital for understanding reactions that occur at elevated temperatures. Many chemical reactions require a certain amount of energy to proceed, known as the activation energy. When reactants are subjected to heat, thermal excitation (热激发) can provide the necessary energy to overcome this barrier, allowing the reaction to take place. This principle is evident in processes such as combustion, where the heat generated from burning fuels leads to the excitation of molecules, facilitating a rapid reaction.Moreover, thermal excitation (热激发) is also significant in the study of phase transitions. For example, when ice is heated, the added thermal energy causes the water molecules to become thermally excited, eventually leading to melting. This transition from solid to liquid is a direct consequence of the energy gained through thermal excitation (热激发). Similarly, in the boiling process, water molecules gain enough energy to transition from the liquid phase to the gas phase, demonstrating the critical role of thermal excitation (热激发) in phase changes.In condensed matter physics, thermal excitation (热激发) is crucial for understanding phenomena such as superconductivity and magnetism. At very low temperatures, certain materials exhibit unique properties that can be explained through the lens of thermal excitation (热激发). For instance, in superconductors, the electrons can form pairs called Cooper pairs, which can move through the lattice without resistance. The formation of these pairs is influenced by the thermal energy available, highlighting the importance of thermal excitation (热激发) in determining the behavior of materials at different temperatures.In conclusion, thermal excitation (热激发) is a key concept that underpins many physical and chemical processes. From the vibration of atoms in solids to the activation of chemical reactions, the effects of thermal energy on particles are profound and wide-ranging. By grasping the principles of thermal excitation (热激发), scientists can better understand the behavior of materials and their transformations, paving the way for advancements in technology and materials science. As research continues to explore the implications of thermal excitation (热激发), its significance in both theoretical and practical applications will only grow, making it an essential topic for students and professionals alike.