coefficient of formation

简明释义

编队系数

英英释义

例句

1.In thermodynamics, the coefficient of formation helps calculate the enthalpy changes in reactions.

在热力学中，形成系数有助于计算反应中的焓变。

2.Researchers often refer to the coefficient of formation when studying reaction kinetics.

研究人员在研究反应动力学时常常提到形成系数。

3.Calculating the coefficient of formation allows scientists to predict product yields.

计算形成系数使科学家能够预测产物产量。

4.The coefficient of formation for water is a fundamental value in chemistry.

水的形成系数是化学中的一个基本值。

5.The coefficient of formation is crucial in determining the stability of chemical compounds.

在确定化合物的稳定性时，形成系数至关重要。

作文

In the realm of chemistry, understanding various concepts is crucial for both students and professionals alike. One such important concept is the coefficient of formation, which plays a significant role in thermodynamics and chemical reactions. The coefficient of formation (形成系数) refers to the numerical value that indicates the amount of a substance formed from its constituent elements under standard conditions. It is essential for calculating the enthalpy change during chemical reactions, which can be vital for predicting reaction behavior and efficiency.To grasp the significance of the coefficient of formation, let’s consider a simple example involving the formation of water. Water is composed of hydrogen and oxygen. The balanced chemical equation for the formation of water is:2H₂(g) + O₂(g) → 2H₂O(l)In this reaction, the coefficient of formation for water is derived from the stoichiometric coefficients in the balanced equation. Here, it indicates that two moles of hydrogen gas react with one mole of oxygen gas to produce two moles of liquid water. The coefficient of formation thus provides an insight into the ratios of reactants and products involved in the reaction.The coefficient of formation is not only limited to simple molecules but also applies to more complex compounds. For instance, when considering organic compounds or larger biomolecules, the coefficient of formation helps chemists understand how these substances can be synthesized from their elemental forms. This aspect is particularly important in fields like pharmaceuticals, where the efficient synthesis of drugs is paramount.Moreover, the coefficient of formation is critical in calculating the Gibbs free energy change of a reaction. By knowing the coefficient of formation for each reactant and product, chemists can determine whether a reaction will occur spontaneously under certain conditions. This calculation is fundamental in predicting the feasibility of chemical processes, especially in industrial applications where maximizing yield and minimizing waste are essential.In addition to its applications in thermodynamics and reaction predictions, the coefficient of formation also holds importance in environmental chemistry. Understanding the formation and breakdown of pollutants in the environment requires knowledge of their coefficient of formation. This information allows researchers to develop strategies for pollution control and remediation by providing insights into how different compounds react and transform in various ecosystems.In conclusion, the coefficient of formation (形成系数) is a vital concept in chemistry that serves multiple purposes across various fields. From facilitating the understanding of chemical reactions to aiding in environmental protection efforts, the coefficient of formation proves to be indispensable. As we continue to explore and innovate within the scientific community, mastering the implications and applications of the coefficient of formation will undoubtedly enhance our ability to tackle complex chemical challenges effectively.