boiling point elevation

简明释义

沸点升高

英英释义

例句

1.In cooking, adding sugar to water increases the boiling point elevation 沸点升高, allowing for better results in candy making.

在烹饪中，向水中添加糖会增加沸点升高 沸点升高，从而在制作糖果时获得更好的效果。

2.During the experiment, we observed a significant boiling point elevation 沸点升高 when antifreeze was mixed with water.

在实验中，当防冻剂与水混合时，我们观察到显著的沸点升高 沸点升高。

3.The boiling point elevation 沸点升高 is an important concept in chemistry that explains how solutes affect solvent properties.

在化学中，沸点升高 沸点升高是一个重要概念，解释了溶质如何影响溶剂的性质。

4.When salt is added to water, the boiling point elevation 沸点升高 allows the water to boil at a higher temperature.

当盐加入水中时，沸点升高 沸点升高使水在更高的温度下沸腾。

5.The boiling point elevation 沸点升高 can be calculated using the formula ΔT_b = i * K_b * m.

可以使用公式ΔT_b = i * K_b * m来计算沸点升高 沸点升高。

作文

The concept of boiling point elevation refers to the phenomenon where the boiling point of a solvent increases when a non-volatile solute is added. This is an important principle in the field of chemistry and has practical applications in various industries, including food science, pharmaceuticals, and even everyday life. Understanding boiling point elevation can help us comprehend how solutions behave differently from pure solvents.When a substance is dissolved in a solvent, the resulting solution exhibits different physical properties compared to the pure solvent. One of these properties is the boiling point. The addition of a solute disrupts the solvent's ability to evaporate, which in turn raises the temperature required for the liquid to boil. This phenomenon can be explained using Raoult's Law, which states that the vapor pressure of a solution is directly proportional to the mole fraction of the solvent present. As more solute is added, the number of solvent molecules at the surface decreases, leading to a reduction in vapor pressure and an increase in boiling point.For example, when salt (sodium chloride) is added to water, the boiling point elevation occurs. This is why when cooking pasta, adding salt to the water not only enhances flavor but also increases the boiling point, allowing the water to reach a higher temperature before boiling. This can lead to faster cooking times and improved texture in the final dish.In the pharmaceutical industry, understanding boiling point elevation is crucial for drug formulation. Many medications are delivered in liquid form, and the stability of these solutions can be affected by the boiling point. By adjusting the concentration of solutes, scientists can ensure that medications remain effective and do not degrade due to improper storage conditions.Moreover, boiling point elevation is also relevant in the field of cryogenics, where the manipulation of boiling points is essential for cooling materials to extremely low temperatures. By adding specific solutes to cryogenic liquids, researchers can control their boiling points, which is vital for various scientific experiments and industrial processes.In conclusion, the concept of boiling point elevation is a fundamental aspect of solution chemistry that has significant implications across multiple fields. From cooking to pharmaceuticals, the ability to manipulate boiling points through the addition of solutes allows for enhanced performance and improved outcomes in various applications. By grasping the principles behind boiling point elevation, we can better appreciate the intricacies of chemical behavior in our everyday lives.

“沸点升高”这一概念指的是当非挥发性溶质添加到溶剂中时，溶剂的沸点会升高。这是化学领域中的一个重要原理，并在食品科学、制药以及日常生活等多个行业中具有实际应用。理解“沸点升高”可以帮助我们理解溶液与纯溶剂的不同表现。当物质溶解在溶剂中时，所得到的溶液在物理属性上与纯溶剂有所不同。其中一个属性就是沸点。溶质的添加干扰了溶剂的蒸发能力，从而提高了液体沸腾所需的温度。这个现象可以通过拉乌尔定律来解释，该定律指出，溶液的蒸汽压与溶剂的摩尔分数成正比。随着溶质的添加，表面上的溶剂分子数量减少，导致蒸汽压降低和沸点升高。例如，当盐（氯化钠）被添加到水中时，会发生“沸点升高”。这就是为什么在煮意大利面的过程中，添加盐不仅可以增强风味，还可以提高沸点，使水在沸腾前达到更高的温度。这可以导致更快的烹饪时间和最终菜肴的改善口感。在制药行业，理解“沸点升高”对药物配方至关重要。许多药物以液体形式交付，而这些溶液的稳定性可能会受到沸点的影响。通过调整溶质的浓度，科学家可以确保药物保持有效，并且不会因储存条件不当而降解。此外，“沸点升高”在低温技术领域也很相关，在该领域中，操控沸点对于将材料冷却到极低温度至关重要。通过向低温液体中添加特定的溶质，研究人员可以控制其沸点，这对于各种科学实验和工业过程至关重要。总之，“沸点升高”这一概念是溶液化学的基本方面，在多个领域具有重要意义。从烹饪到制药，通过添加溶质操控沸点使得在各种应用中提升性能和改善结果成为可能。通过掌握“沸点升高”背后的原理，我们可以更好地欣赏日常生活中化学行为的复杂性。