beckmann thermometer

简明释义

贝克曼温度计

英英释义

例句

1.When performing distillation, a beckmann thermometer helps in monitoring temperature changes.

在进行蒸馏时，贝克曼温度计有助于监测温度变化。

2.We calibrated the beckmann thermometer before starting our experiments to ensure precise readings.

在开始实验之前，我们对贝克曼温度计进行了校准，以确保读数准确。

3.The beckmann thermometer can be used in both organic and inorganic chemistry labs.

贝克曼温度计可以在有机和无机化学实验室中使用。

4.The beckmann thermometer is essential for accurately determining the melting point of substances.

对于准确确定物质的熔点，贝克曼温度计是必不可少的。

5.In the chemistry lab, we used a beckmann thermometer to measure the boiling point of various liquids.

在化学实验室，我们使用贝克曼温度计来测量各种液体的沸点。

作文

The Beckmann thermometer is a specialized instrument used for measuring small temperature changes with high precision. Invented by the German chemist Ernst Beckmann in the late 19th century, this thermometer has become an essential tool in various scientific fields, particularly in chemistry and physics. The Beckmann thermometer is designed to measure the boiling point elevation or freezing point depression of solutions, making it invaluable for determining molecular weights and studying colligative properties. One of the key features of the Beckmann thermometer is its ability to measure temperatures with an accuracy of up to 0.01 degrees Celsius. This level of precision is crucial when conducting experiments that require exact temperature control, such as those involving phase transitions in chemical reactions. The thermometer consists of a long glass tube filled with a liquid, typically mercury or colored alcohol, which expands and contracts in response to temperature changes. The scale on the thermometer is finely graduated, allowing scientists to read the temperature accurately. In practice, using a Beckmann thermometer involves careful preparation of the solution being tested. The sample must be placed in a controlled environment, often in a water bath, to maintain a stable temperature during the measurement process. Once the solution reaches the desired temperature, the thermometer is inserted, and the reading is taken after allowing the liquid to stabilize. This method ensures that any fluctuations in temperature do not affect the accuracy of the measurement. The applications of the Beckmann thermometer extend beyond simple temperature measurements. In laboratories, it is commonly used to determine the molecular weight of solutes by observing the change in freezing point or boiling point when a solute is added to a solvent. This technique, known as cryoscopy or ebullioscopy, is fundamental in physical chemistry and helps researchers understand the properties of various substances. Moreover, the Beckmann thermometer plays a significant role in educational settings, where students learn about thermodynamics and the principles of temperature measurement. By using this instrument, students can visualize the concepts of heat transfer and phase changes, enhancing their understanding of these critical scientific principles. In conclusion, the Beckmann thermometer is more than just a measuring device; it is a vital tool that has advanced our understanding of temperature and its effects on matter. Its precision and versatility make it indispensable in both research and educational contexts. As technology continues to evolve, the Beckmann thermometer remains a testament to the importance of accurate measurement in the scientific community, enabling discoveries and innovations across various disciplines.

贝克曼温度计是一种专门用于高精度测量小温度变化的仪器。它由德国化学家恩斯特·贝克曼在19世纪末发明，已经成为许多科学领域，特别是化学和物理学中的重要工具。贝克曼温度计旨在测量溶液的沸点升高或凝固点降低，因此在确定分子量和研究胶体性质方面不可或缺。贝克曼温度计的一个关键特点是能够以高达0.01摄氏度的精度测量温度。这种精确度在进行需要精确温度控制的实验时至关重要，例如涉及化学反应相变的实验。温度计由一根长玻璃管组成，内填充液体，通常是汞或着色酒精，这些液体会随着温度变化而膨胀和收缩。温度计上的刻度非常细致，使科学家能够准确读取温度。在实践中，使用贝克曼温度计涉及对被测试溶液的仔细准备。样品必须放置在受控环境中，通常在水浴中，以保持测量过程中的稳定温度。一旦溶液达到所需温度，就将温度计插入，并在允许液体稳定后读取。此方法确保温度波动不会影响测量的准确性。贝克曼温度计的应用不仅限于简单的温度测量。在实验室中，它通常用于通过观察添加溶质到溶剂时的凝固点或沸点变化来确定溶质的分子量。这种技术被称为冷冻法或沸腾法，是物理化学中的基础，帮助研究人员理解各种物质的性质。此外，贝克曼温度计在教育环境中也发挥着重要作用，学生们通过学习热力学和温度测量原理来了解科学知识。通过使用这种仪器，学生可以直观地理解热传递和相变的概念，从而增强他们对这些关键科学原理的理解。总之，贝克曼温度计不仅仅是一种测量设备；它是推动我们理解温度及其对物质影响的重要工具。它的精确性和多功能性使其在研究和教育环境中不可或缺。随着技术的不断发展，贝克曼温度计仍然是科学界准确测量重要性的见证，推动各个学科的发现和创新。