heat capacity

简明释义

热容量

英英释义

例句

1.When designing a heating system, engineers must consider the heat capacity of the materials used.

在设计供热系统时，工程师必须考虑所用材料的热容（heat capacity）。

2.The heat capacity of a substance affects how quickly it can heat up or cool down.

物质的热容（heat capacity）影响它加热或冷却的速度。

3.In cooking, understanding the heat capacity of different pots can help you choose the right one for your dish.

在烹饪中，了解不同锅具的热容（heat capacity）可以帮助你选择合适的锅具来烹调你的菜肴。

4.The specific heat capacity of water is quite high, which means it can absorb a lot of heat before its temperature rises.

水的比热容（heat capacity）相当高，这意味着它可以在温度升高之前吸收大量热量。

5.The heat capacity of metals is generally lower than that of water, which is why they heat up quickly.

金属的热容（heat capacity）通常低于水，因此它们加热得很快。

作文

Heat capacity is a fundamental concept in thermodynamics that describes the amount of heat energy required to change the temperature of a substance by a certain amount. This property is crucial for understanding how materials respond to heat and is essential in various scientific and engineering applications. In essence, heat capacity (热容) determines how much energy a material can store and how quickly it can release that energy. There are two primary types of heat capacity (热容): specific heat capacity and molar heat capacity. Specific heat capacity refers to the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius. On the other hand, molar heat capacity refers to the heat needed to raise the temperature of one mole of a substance by one degree Celsius. Understanding these distinctions is important for scientists and engineers when selecting materials for specific applications.One of the most common examples of heat capacity (热容) in everyday life is water. Water has a high specific heat capacity, which means it can absorb a lot of heat without experiencing a significant change in temperature. This property makes water an excellent coolant and is why it is often used in heating and cooling systems. For instance, in climate control systems, water's ability to store heat helps maintain stable temperatures in buildings.Moreover, the heat capacity (热容) of a material can vary with temperature and pressure, which adds complexity to its analysis. For example, as a substance approaches its boiling point, its heat capacity (热容) may increase significantly due to phase changes. This phenomenon is particularly relevant in processes such as cooking, where understanding the heat capacity (热容) of different ingredients can influence cooking times and methods.In engineering, knowing the heat capacity (热容) of materials is critical for designing thermal systems. For example, in aerospace engineering, materials used in spacecraft must withstand extreme temperatures during re-entry into the Earth's atmosphere. Engineers must carefully select materials with appropriate heat capacity (热容) to ensure that they can handle these temperature fluctuations without failing.Furthermore, the concept of heat capacity (热容) extends beyond just solid and liquid substances; gases also possess heat capacity (热容). However, gas heat capacity (热容) can be more complex due to the fact that it can vary depending on whether the process occurs at constant pressure or constant volume. This distinction is vital in fields like meteorology, where understanding the heat capacity (热容) of air can help predict weather patterns and climate changes.In conclusion, heat capacity (热容) is a vital concept that plays a significant role in various scientific and engineering disciplines. Its implications can be observed in everyday phenomena, from the way we cook our meals to the design of advanced thermal systems in aerospace engineering. By understanding heat capacity (热容), we gain insight into how materials interact with heat, paving the way for innovations in technology and a deeper comprehension of the natural world.

热容是热力学中的一个基本概念，描述了改变物质温度所需的热能量。这个性质对于理解材料如何响应热量至关重要，并且在各种科学和工程应用中都是必不可少的。本质上，热容决定了材料可以储存多少能量以及它可以多快释放这些能量。热容主要有两种类型：比热容和摩尔热容。比热容指的是将一克物质的温度提高一摄氏度所需的热量。另一方面，摩尔热容指的是将一摩尔物质的温度提高一摄氏度所需的热量。理解这些区别对于科学家和工程师在选择特定应用材料时非常重要。日常生活中最常见的热容例子之一是水。水具有高比热容，这意味着它可以吸收大量的热量而不会经历显著的温度变化。这一特性使得水成为优秀的冷却剂，因此常常用于加热和冷却系统。例如，在气候控制系统中，水的储热能力帮助维持建筑物内的稳定温度。此外，材料的热容可以随温度和压力变化，这增加了分析的复杂性。例如，当物质接近其沸点时，其热容可能会因相变而显著增加。这一现象在烹饪过程中尤其相关，因为了解不同成分的热容可以影响烹饪时间和方法。在工程领域，了解材料的热容对于设计热系统至关重要。例如，在航空航天工程中，用于航天器的材料必须能够承受再入地球大气层时的极端温度。工程师必须仔细选择具有适当热容的材料，以确保它们能够处理这些温度波动而不发生故障。此外，热容的概念不仅限于固体和液体；气体也具有热容。然而，由于气体的热容可能会因过程是在恒压还是恒容下进行而异，这使得气体的热容更加复杂。这一区别在气象学等领域至关重要，因为理解空气的热容可以帮助预测天气模式和气候变化。总之，热容是一个重要的概念，在各种科学和工程学科中发挥着重要作用。其影响可以在日常现象中观察到，从我们烹饪食物的方式到航空航天工程中先进热系统的设计。通过理解热容，我们获得了对材料如何与热量相互作用的深入见解，为技术创新和对自然世界的更深理解铺平了道路。