actual yield

简明释义

实际利润率，实际生息率

英英释义

例句

1.In this experiment, the actual yield was significantly lower than the theoretical yield.

在这个实验中，实际产率明显低于理论产率。

2.The chemist calculated the actual yield of the reaction to be 75 grams.

化学家计算该反应的实际产率为75克。

3.The farmer reported an actual yield of 500 bushels per acre this year.

农民报告今年每英亩的实际产率为500蒲式耳。

4.To determine efficiency, we need to compare the actual yield with the expected yield.

为了确定效率，我们需要将实际产率与预期产率进行比较。

5.After several trials, the actual yield of the product stabilized at 90% of the target.

经过几次试验，产品的实际产率稳定在目标的90%。

作文

In the field of chemistry, the term actual yield refers to the amount of product that is actually obtained from a chemical reaction. This is in contrast to the theoretical yield, which is the maximum amount of product that could be formed based on the stoichiometry of the reaction. Understanding the difference between these two yields is crucial for chemists and students alike, as it helps in evaluating the efficiency of a chemical reaction. The actual yield 实际产量 can be influenced by several factors including the purity of the reactants, the conditions under which the reaction takes place, and how well the reaction is controlled. For instance, consider a simple reaction where hydrogen gas reacts with oxygen gas to form water. If we start with 2 grams of hydrogen and 16 grams of oxygen, we can calculate the theoretical yield of water using stoichiometry. However, if after conducting the experiment, we only manage to collect 15 grams of water, then our actual yield 实际产量 is 15 grams. This scenario illustrates that various inefficiencies can occur during a reaction, such as incomplete reactions or side reactions that consume some of the reactants. The importance of actual yield 实际产量 extends beyond just academic exercises; it has practical implications in industrial processes as well. For example, in pharmaceuticals, the actual yield 实际产量 of a drug synthesis can significantly affect production costs and timelines. If a company consistently achieves a low actual yield 实际产量, it may need to reassess its methods or invest in better equipment to optimize the reaction conditions. Furthermore, calculating the actual yield 实际产量 allows chemists to determine the percent yield, which is the ratio of the actual yield 实际产量 to the theoretical yield, multiplied by 100. This percentage gives a clear indication of how efficient a reaction is. A high percent yield signifies a more efficient process, while a low percent yield indicates potential issues that need addressing. In educational settings, understanding the concept of actual yield 实际产量 is vital for students learning about chemical reactions. It encourages them to think critically about the factors that influence reactions and to approach experiments with an analytical mindset. By measuring both actual yield 实际产量 and theoretical yield, students can gain hands-on experience in laboratory techniques and learn to appreciate the complexities involved in chemical synthesis. In conclusion, the term actual yield 实际产量 is fundamental in the realm of chemistry. Whether in academic research or industrial applications, understanding and optimizing actual yield 实际产量 is essential for achieving desired outcomes efficiently. By grasping the significance of this concept, individuals can enhance their comprehension of chemical processes and contribute to advancements in various fields, including healthcare, manufacturing, and environmental science.

在化学领域，术语实际产量指的是从化学反应中实际获得的产品量。这与理论产量形成对比，后者是根据反应的化学计量学计算出的最大可能产量。理解这两种产量之间的区别对于化学家和学生来说至关重要，因为它有助于评估化学反应的效率。实际产量可能受到多种因素的影响，包括反应物的纯度、反应进行的条件以及反应的控制程度。例如，考虑一个简单的反应，其中氢气与氧气反应生成水。如果我们以2克氢和16克氧作为起始物质，我们可以使用化学计量学计算出水的理论产量。然而，如果在实验后，我们只收集到15克水，那么我们的实际产量就是15克。这个场景说明了在反应过程中可能发生各种低效现象，例如反应不完全或副反应消耗了一些反应物。实际产量的重要性不仅限于学术练习；它在工业过程中也具有实际意义。例如，在制药行业，药物合成的实际产量可能显著影响生产成本和时间表。如果一家公司持续实现低实际产量，它可能需要重新评估其方法或投资更好的设备以优化反应条件。此外，计算实际产量可以帮助化学家确定百分比产量，即实际产量与理论产量的比率，乘以100。这个百分比清晰地表明了反应的效率。高百分比产量意味着过程更加高效，而低百分比产量则表明可能存在需要解决的问题。在教育环境中，理解实际产量的概念对于学习化学反应的学生至关重要。它鼓励他们批判性地思考影响反应的因素，并以分析的思维方式进行实验。通过测量实际产量和理论产量，学生可以获得实验室技术的实践经验，并学会欣赏化学合成中涉及的复杂性。总之，术语实际产量在化学领域是基础性的。无论是在学术研究还是工业应用中，理解和优化实际产量对于高效实现期望结果至关重要。通过掌握这一概念的意义，个人可以增强对化学过程的理解，并为包括医疗、制造和环境科学在内的各个领域的进步做出贡献。