freezing point

简明释义

冰点

英英释义

例句

1.Water freezes at its freezing point.

水在其冰点时结冰。

2.Salt can lower the freezing point of water, which is why it's used on icy roads.

盐可以降低水的冰点，这就是为什么它被用在结冰的道路上。

3.To make ice cream, you need to lower the freezing point of the mixture.

制作冰淇淋时，需要降低混合物的冰点。

4.The freezing point of mercury is much lower than that of water.

汞的冰点远低于水的冰点。

5.The freezing point of pure ethanol is around -114 degrees Celsius.

纯乙醇的冰点大约是-114摄氏度。

作文

The concept of the freezing point is fundamental in understanding the behavior of substances as they transition from a liquid to a solid state. The freezing point is defined as the temperature at which a liquid turns into a solid when cooled. This phenomenon occurs due to the molecular arrangement of the substance, which changes as it loses energy and slows down. For example, water freezes at 0 degrees Celsius (32 degrees Fahrenheit), which is its freezing point. At this temperature, the molecules of water begin to form a structured lattice, resulting in ice. Understanding the freezing point is crucial in various fields, including chemistry, physics, and environmental science. In chemistry, the freezing point can be affected by the presence of solutes. When salt is added to water, for instance, the freezing point decreases, a phenomenon known as freezing point depression. This principle is commonly applied in winter road maintenance, where salt is spread on icy roads to lower the freezing point of water, preventing ice formation and making roads safer for travel.In physics, the freezing point plays a significant role in studying phase transitions. It helps scientists understand how different materials behave under varying temperature conditions. For example, metals have distinct freezing points that determine their usability in different applications. Knowing the freezing point of a metal is essential in industries such as construction and manufacturing, where materials must withstand specific temperatures without losing their structural integrity.Environmental science also heavily relies on the understanding of the freezing point. Climate change has been affecting the freezing point of natural bodies of water, leading to ecological consequences. As global temperatures rise, the freezing point of lakes and rivers may increase, causing longer periods of liquid water and affecting aquatic life. Fish and other organisms depend on stable ice cover during winter months, and changes in the freezing point can disrupt their habitats and breeding cycles.In conclusion, the freezing point is not just a simple measurement but a critical concept that influences various scientific disciplines and real-world applications. By understanding the freezing point, we can better appreciate the complexities of material properties, environmental changes, and even everyday phenomena, such as why we add salt to our icy sidewalks. The implications of the freezing point extend beyond mere numbers on a thermometer; they touch upon the interconnectedness of our world and the importance of maintaining balance within our ecosystems. Therefore, whether in the laboratory, on the road, or in nature, the freezing point remains a vital consideration in both scientific inquiry and practical decision-making.

“冰点”的概念对于理解物质如何从液态转变为固态至关重要。冰点被定义为液体在冷却时转变为固体的温度。这个现象是由于物质的分子排列发生变化，当它失去能量并减缓运动时。例如，水在0摄氏度（32华氏度）时冻结，这就是它的冰点。在这个温度下，水分子开始形成有序的晶格，最终形成冰。理解冰点在化学、物理和环境科学等多个领域中都是至关重要的。在化学中，冰点可以受到溶质存在的影响。当盐加入水中时，冰点会降低，这种现象被称为冰点降低。这一原理在冬季道路维护中得到了广泛应用，盐被洒在结冰的道路上，以降低水的冰点，防止冰的形成，从而使道路更加安全。在物理学中，冰点在研究相变过程中扮演了重要角色。它帮助科学家理解不同材料在不同温度条件下的行为。例如，金属有其独特的冰点，决定了它们在不同应用中的可用性。了解金属的冰点对于建筑和制造等行业至关重要，因为这些材料必须在特定温度下保持结构完整性。环境科学同样严重依赖于对冰点的理解。气候变化正在影响自然水体的冰点，导致生态后果。随着全球气温上升，湖泊和河流的冰点可能会增加，导致液态水的持续时间更长，从而影响水生生物。鱼类和其他生物依赖于冬季稳定的冰层，冰点的变化可能会破坏它们的栖息地和繁殖周期。总之，冰点不仅仅是一个简单的测量，而是一个关键概念，影响着多个科学学科和现实世界应用。通过理解冰点，我们可以更好地欣赏物质属性、环境变化甚至日常现象的复杂性，例如为什么我们在结冰的人行道上撒盐。冰点的影响超越了温度计上的数字；它们触及我们世界的相互联系以及维持生态系统平衡的重要性。因此，无论是在实验室、道路上还是在大自然中，冰点始终是科学探究和实际决策中的一个重要考虑因素。