actual yield

简明释义

实际威力

英英释义

例句

1.The actual yield can vary based on the purity of the reactants used in the reaction.

由于反应中使用的反应物纯度不同，实际产量可能会有所变化。

2.In our chemical reaction, the actual yield was significantly lower than expected due to side reactions.

在我们的化学反应中，实际产量由于副反应显著低于预期。

3.After several trials, we determined that the actual yield of the product was around 85%.

经过几次试验，我们确定产品的实际产量约为85%。

4.To calculate the efficiency of the process, we need to compare the actual yield with the expected yield.

为了计算过程的效率，我们需要将实际产量与预期产量进行比较。

5.The experiment showed that the actual yield was only 70% of the theoretical yield.

实验表明，实际产量仅为理论产量的70%。

作文

In the field of chemistry, the concept of yield is crucial for understanding the efficiency of a chemical reaction. When we perform a reaction, we often want to know how much product we can expect to obtain from our reactants. This is where the terms 'theoretical yield' and actual yield come into play. Theoretical yield refers to the maximum amount of product that could be formed from a given amount of reactants under ideal conditions, while actual yield (实际产量) is the amount of product that is actually produced when the reaction is carried out in practice.Understanding the difference between these two types of yields is essential for chemists. Theoretical yield provides a benchmark against which we can measure the success of our reactions. However, in real laboratory settings, various factors can affect the outcome of a reaction, leading to discrepancies between the theoretical yield and the actual yield (实际产量). These factors can include incomplete reactions, side reactions, and losses during the purification process.For instance, let’s consider a simple reaction where we combine reactants A and B to produce product C. If we start with 10 grams of A and 5 grams of B, we can calculate the theoretical yield of C based on stoichiometric ratios. However, when we perform the experiment, we might only recover 8 grams of C. In this case, the actual yield (实际产量) is 8 grams, which is less than the theoretical yield. This discrepancy can help us identify areas where we might improve our experimental techniques or better understand the chemistry involved.Moreover, calculating the percentage yield is a common practice in laboratories. The percentage yield is calculated by taking the actual yield (实际产量), dividing it by the theoretical yield, and then multiplying by 100. This gives a clear indication of how efficient the reaction was. For example, if the theoretical yield was 10 grams and the actual yield (实际产量) was 8 grams, the percentage yield would be 80%. This percentage can help chemists evaluate the effectiveness of their methods and make necessary adjustments in future experiments.In industry, understanding and optimizing actual yield (实际产量) is vital for cost efficiency. Companies strive to maximize the actual yield (实际产量) to reduce waste and increase profitability. By analyzing the factors that contribute to lower yields, such as reaction conditions or catalyst efficiency, industries can implement strategies to enhance production processes.In conclusion, the distinction between theoretical yield and actual yield (实际产量) is fundamental in the study of chemistry. While theoretical yield serves as an ideal target, the actual yield (实际产量) reflects the reality of the experimental outcomes. Understanding these concepts not only aids in academic studies but also plays a significant role in practical applications within the chemical industry. As we continue to explore and refine our methods, the goal remains to bridge the gap between theoretical expectations and actual results, ultimately leading to more efficient and effective chemical processes.

在化学领域，产量的概念对于理解化学反应的效率至关重要。当我们进行反应时，我们通常想知道可以从反应物中预期获得多少产品。这就是“理论产量”和实际产量（actual yield）这两个术语的作用。理论产量指的是在理想条件下，从给定量的反应物中可能形成的最大产品量，而实际产量（实际产量）是指在实际进行反应时实际产生的产品量。理解这两种产量之间的差异对化学家来说非常重要。理论产量提供了一个基准，以便我们可以衡量反应的成功程度。然而，在实际实验室环境中，各种因素可能会影响反应的结果，导致理论产量与实际产量（实际产量）之间的差异。这些因素可能包括反应不完全、副反应以及在纯化过程中损失的物质。例如，假设我们考虑一个简单的反应，其中我们将反应物A和B结合以生成产品C。如果我们开始时有10克的A和5克的B，我们可以根据化学计量比计算出C的理论产量。然而，当我们进行实验时，可能只回收了8克的C。在这种情况下，实际产量（实际产量）为8克，低于理论产量。这种差异可以帮助我们识别出可以改进实验技术或更好理解所涉及化学的领域。此外，计算百分比产量是实验室中的一种常见做法。百分比产量通过将实际产量（实际产量）除以理论产量，然后乘以100来计算。这为我们提供了反应效率的明确指示。例如，如果理论产量为10克，而实际产量（实际产量）为8克，则百分比产量为80%。这个百分比可以帮助化学家评估他们的方法的有效性，并在未来的实验中做出必要的调整。在工业中，理解和优化实际产量（实际产量）对成本效率至关重要。公司努力最大化实际产量（实际产量），以减少浪费并增加盈利能力。通过分析导致较低产量的因素，例如反应条件或催化剂效率，工业可以实施策略以提升生产过程。总之，理论产量和实际产量（实际产量）之间的区别在化学研究中是基本的。虽然理论产量作为一个理想目标，但实际产量（实际产量）反映了实验结果的现实。理解这些概念不仅有助于学术研究，而且在化学工业的实际应用中也发挥着重要作用。随着我们继续探索和完善我们的方法，目标仍然是缩小理论期望与实际结果之间的差距，最终实现更高效和有效的化学过程。