heat of fusion

简明释义

熔化热

英英释义

例句

1.Different substances have different heat of fusion values, affecting their melting points.

不同物质具有不同的熔化热值，这影响它们的熔点。

2.The heat of fusion of gold is lower than that of aluminum, making it easier to melt.

黄金的熔化热低于铝，使其更容易熔化。

3.In engineering, understanding the heat of fusion is crucial for designing cooling systems.

在工程学中，理解熔化热对于设计冷却系统至关重要。

4.When water freezes, it releases the same amount of energy as its heat of fusion.

当水结冰时，它释放的能量与其熔化热相同。

5.The amount of energy required to melt ice is known as the heat of fusion.

融化冰所需的能量被称为熔化热。

作文

The concept of heat of fusion is fundamental in the study of thermodynamics and material science. It refers to the amount of energy required to change a substance from a solid to a liquid at its melting point, without changing its temperature. This process occurs when the molecules within a solid gain enough energy to overcome the forces holding them together, allowing them to move freely as a liquid. Understanding the heat of fusion is essential for various applications, including engineering, cooking, and even climate science.In everyday life, we encounter the heat of fusion in numerous situations. For instance, when ice melts into water, it absorbs a specific amount of heat energy from its surroundings. This energy is used to break the hydrogen bonds between water molecules in the ice, facilitating the transition from solid to liquid. The heat of fusion for ice, which is approximately 334 joules per gram, illustrates how much energy is needed for this transformation. This value is crucial for understanding how ice behaves in different environments, such as in glaciers or during winter weather.Moreover, the heat of fusion plays a vital role in industrial processes. In metallurgy, for example, knowing the heat of fusion of metals allows engineers to design more efficient melting and casting procedures. By controlling the temperature and energy input, manufacturers can ensure that metals are melted smoothly and uniformly, resulting in better quality products. Similarly, in food science, the heat of fusion is important for processes like freezing and thawing foods. Chefs and food technologists rely on this knowledge to optimize cooking methods and preserve food quality.Additionally, the heat of fusion has significant implications for climate science. As global temperatures rise, the melting of polar ice caps and glaciers accelerates, contributing to sea level rise. Understanding the heat of fusion of ice helps scientists predict how much energy is required to melt these vast ice reserves. This information is critical for modeling climate change and its potential impacts on ecosystems and human populations.In conclusion, the heat of fusion is a key concept that spans various fields of study and practical applications. From everyday experiences with ice to complex industrial processes and critical climate research, the understanding of this phenomenon enhances our ability to manipulate materials and predict environmental changes. As we continue to explore the intricate relationships between energy, matter, and temperature, the heat of fusion remains a vital area of focus for scientists, engineers, and anyone interested in the physical world around us.

“融化热”这个概念在热力学和材料科学的研究中是基础性的。它指的是在物质的熔点下，将物质从固态转变为液态所需的能量，而不改变其温度。当固体中的分子获得足够的能量以克服将它们结合在一起的力时，这一过程就会发生，使它们能够自由地作为液体移动。理解“融化热”对于各种应用至关重要，包括工程、烹饪，甚至气候科学。在日常生活中，我们在许多情况下都会遇到“融化热”。例如，当冰融化成水时，它会从周围环境中吸收特定数量的热能。这种能量用于打破冰中水分子之间的氢键，从而促进从固态到液态的转变。冰的“融化热”约为每克334焦耳，这一数值说明了这种转变所需的能量。这一数值对于理解冰在不同环境中的行为至关重要，例如在冰川或冬季天气中。此外，“融化热”在工业过程中也起着至关重要的作用。例如，在冶金中，了解金属的“融化热”可以让工程师设计出更高效的熔化和铸造程序。通过控制温度和能量输入，制造商可以确保金属的熔化过程平滑且均匀，从而生产出更高质量的产品。同样，在食品科学中，“融化热”对于冷冻和解冻食品等过程也很重要。厨师和食品技术专家依赖这一知识来优化烹饪方法并保持食品质量。此外，“融化热”对气候科学也有重要影响。随着全球气温上升，极地冰盖和冰川的融化加速，导致海平面上升。了解冰的“融化热”有助于科学家预测融化这些巨大冰储备所需的能量。这一信息对于气候变化及其对生态系统和人类社会潜在影响的建模至关重要。总之，“融化热”是一个关键概念，涵盖了多个研究领域和实际应用。从与冰有关的日常体验到复杂的工业过程再到重要的气候研究，对这一现象的理解增强了我们操控材料和预测环境变化的能力。随着我们继续探索能量、物质和温度之间错综复杂的关系，“融化热”仍然是科学家、工程师以及任何对周围物理世界感兴趣的人关注的重要领域。