freezing mixture

简明释义

冻结混合物

英英释义

例句

1.The freezing mixture (冷冻混合物) of dry ice and alcohol is commonly used for rapid cooling.

干冰和酒精的freezing mixture (冷冻混合物)通常用于快速冷却。

2.When camping, we used a freezing mixture (冷冻混合物) to keep our food fresh.

露营时，我们使用了一个freezing mixture (冷冻混合物)来保持食物的新鲜。

3.In chemistry class, we created a freezing mixture (冷冻混合物) to lower the temperature of a solution.

在化学课上，我们制作了一种freezing mixture (冷冻混合物)来降低溶液的温度。

4.To make homemade ice cream, you need a freezing mixture (冷冻混合物) of ice and salt.

制作自制冰淇淋时，你需要一种冰和盐的freezing mixture (冷冻混合物)。

5.The scientists prepared a freezing mixture (冷冻混合物) to conduct their experiments at lower temperatures.

科学家们准备了一种freezing mixture (冷冻混合物)以在更低的温度下进行实验。

作文

In the realm of chemistry, the term freezing mixture refers to a combination of substances that, when mixed together, create a solution capable of lowering the freezing point of a solvent. This process is crucial in various scientific and culinary applications, particularly in the making of ice cream and in laboratory settings where precise temperature control is necessary. The most common example of a freezing mixture involves the use of ice and salt. When salt is added to ice, it lowers the freezing point of water, allowing the mixture to reach temperatures below 0 degrees Celsius. This phenomenon occurs because the salt disrupts the formation of ice crystals, requiring the temperature to drop further to achieve a solid state.The practical applications of freezing mixtures are vast and varied. In the kitchen, for instance, ice cream makers often rely on this principle to achieve a creamy texture without the use of commercial freezers. By surrounding the ice cream base with a freezing mixture of ice and salt, the mixture can cool rapidly, preventing the formation of large ice crystals and resulting in a smoother final product. This method not only enhances the texture but also allows for the production of homemade ice cream in a more efficient manner.In laboratory settings, freezing mixtures are used to maintain low temperatures for chemical reactions or to preserve biological samples. For example, researchers may utilize a freezing mixture of dry ice and acetone to achieve temperatures as low as -78 degrees Celsius. This is particularly useful when working with temperature-sensitive compounds that could degrade or react undesirably if exposed to higher temperatures. The ability to control temperature precisely is essential in many scientific experiments, and freezing mixtures provide an effective solution.Moreover, understanding the concept of freezing mixtures has implications beyond just cooking and chemistry. It plays a role in environmental science, particularly in understanding how certain chemicals can affect the freezing points of natural bodies of water. For instance, pollutants that enter lakes and rivers can alter the freezing behavior of these ecosystems, potentially harming aquatic life during winter months. Thus, studying freezing mixtures can help scientists develop strategies to mitigate these effects and protect vulnerable species.In conclusion, the concept of freezing mixture is an important one that spans across various fields, from culinary arts to scientific research. Its ability to lower freezing points through the combination of different substances opens up a world of possibilities. Whether it’s making delicious homemade ice cream or conducting critical scientific experiments, freezing mixtures play a vital role in our understanding and manipulation of temperature. As we continue to explore the intricacies of chemistry and its applications, the significance of freezing mixtures will undoubtedly remain a topic of interest and importance.

在化学领域，短语freezing mixture指的是一种物质组合，当这些物质混合在一起时，可以降低溶剂的冰点。这一过程在各种科学和烹饪应用中至关重要，尤其是在制作冰淇淋和实验室环境中，需要精确的温度控制。最常见的freezing mixture示例涉及冰和盐的使用。当盐被添加到冰中时，它降低了水的冰点，使混合物能够达到低于0摄氏度的温度。这种现象的发生是因为盐干扰了冰晶的形成，导致温度需要进一步下降才能实现固态。freezing mixtures的实际应用广泛而多样。例如，在厨房中，冰淇淋制造商通常依赖这一原理来实现奶油般的质地，而无需使用商业冰箱。通过用冰和盐的freezing mixture包围冰淇淋基料，混合物可以迅速冷却，从而防止形成大冰晶，最终产品更加顺滑。这种方法不仅增强了质地，还允许以更高效的方式制作自制冰淇淋。在实验室环境中，freezing mixtures用于维持化学反应或保存生物样本的低温。例如，研究人员可能会利用干冰和丙酮的freezing mixture来实现低至-78摄氏度的温度。这在处理对温度敏感的化合物时特别有用，因为这些化合物如果暴露在较高温度下可能会降解或不良反应。精确控制温度的能力在许多科学实验中至关重要，而freezing mixtures提供了有效的解决方案。此外，理解freezing mixtures的概念在环境科学中也有重要意义，特别是在了解某些化学物质如何影响自然水体的冰点方面。例如，进入湖泊和河流的污染物可能会改变这些生态系统的冰冻行为，可能在冬季危害水生生物。因此，研究freezing mixtures可以帮助科学家制定策略，以减轻这些影响并保护脆弱物种。总之，freezing mixture的概念是一个重要的主题，跨越了多个领域，从烹饪艺术到科学研究。通过不同物质的组合降低冰点的能力开启了无数可能性。无论是制作美味的自制冰淇淋还是进行关键的科学实验，freezing mixtures在我们理解和操控温度方面发挥着至关重要的作用。随着我们继续探索化学及其应用的复杂性，freezing mixtures的重要性无疑将继续成为一个引人关注的话题。