universal gas constant

简明释义

通用气体常数

英英释义

例句

1.In calculations involving gases, it is essential to use the correct value for the universal gas constant (普适气体常数).

在涉及气体的计算中，使用正确的 universal gas constant (普适气体常数) 值是至关重要的。

2.The ideal gas law is often represented as PV = nRT, where R is the universal gas constant (普适气体常数).

理想气体定律通常表示为 PV = nRT，其中 R 是 universal gas constant (普适气体常数)。

3.When studying thermodynamics, understanding the role of the universal gas constant (普适气体常数) is crucial.

在学习热力学时，理解 universal gas constant (普适气体常数) 的作用至关重要。

4.The universal gas constant (普适气体常数) has a value of 8.314 J/(mol·K).

universal gas constant (普适气体常数) 的值为 8.314 J/(mol·K)。

5.In the equation of state for an ideal gas, the universal gas constant (普适气体常数) helps relate pressure, volume, and temperature.

在理想气体的状态方程中，universal gas constant (普适气体常数) 有助于关联压力、体积和温度。

作文

The concept of the universal gas constant, often denoted by the symbol R, plays a crucial role in the field of thermodynamics and physical chemistry. This constant is fundamental to the ideal gas law, which describes the relationship between pressure, volume, temperature, and the number of moles of an ideal gas. The universal gas constant is defined as the proportionality factor that relates the energy scale to the temperature scale in the context of gas behavior. In simpler terms, it allows scientists to understand how gases will behave under various conditions of temperature and pressure.To delve deeper into its significance, let us consider the ideal gas law equation: PV = nRT. Here, P represents the pressure of the gas, V is the volume, n is the number of moles, T is the temperature in Kelvin, and R is the universal gas constant. The value of R is approximately 8.314 J/(mol·K) when expressed in joules per mole per kelvin, but it can also be represented in other units depending on the context of the problem.The universal gas constant serves as a bridge between the macroscopic properties of gases and their microscopic behaviors. It is essential for calculations involving real gases, especially when deviations from ideal behavior are observed at high pressures and low temperatures. Understanding this constant is vital for scientists and engineers who work with gases in various applications, from designing engines to studying atmospheric phenomena.In practical applications, the universal gas constant helps in predicting how a gas will respond when subjected to changes in temperature and pressure. For instance, if you have a balloon filled with air and you heat it, the temperature of the gas increases, causing the pressure to rise as well. By applying the ideal gas law and incorporating the universal gas constant, one can calculate how much the volume of the balloon will change under these conditions.Furthermore, the universal gas constant is not only limited to ideal gases. It also plays a role in various chemical reactions where gases are involved. For example, in stoichiometric calculations, the universal gas constant helps chemists determine the amount of reactants needed to produce a certain volume of gas or the amount of gas produced from a given reaction. This is particularly important in industries such as pharmaceuticals, where precise measurements are crucial for product quality and safety.In conclusion, the universal gas constant is a key element in understanding gas behavior and is indispensable in both theoretical and practical applications. From the ideal gas law to real-world scenarios involving gas reactions and engineering designs, the universal gas constant provides a foundational understanding of how gases interact with their environment. As we continue to explore the complexities of thermodynamics, the significance of the universal gas constant will undoubtedly remain a cornerstone of scientific inquiry and innovation.

“普适气体常数”（universal gas constant）这一概念通常用符号R表示，在热力学和物理化学领域中发挥着至关重要的作用。这个常数是理想气体定律的基础，描述了压力、体积、温度和理想气体的摩尔数之间的关系。“普适气体常数”定义为在气体行为的背景下，将能量尺度与温度尺度联系起来的比例因子。简单来说，它使科学家能够理解气体在不同温度和压力条件下的行为。为了更深入地了解其重要性，让我们考虑理想气体定律方程：PV = nRT。在这里，P代表气体的压力，V是体积，n是摩尔数，T是开尔文温度，R是“普适气体常数”。当以焦耳每摩尔每开尔文表示时，R的值约为8.314，但根据问题的上下文，它也可以用其他单位表示。“普适气体常数”作为气体宏观性质与其微观行为之间的桥梁。它对于涉及真实气体的计算至关重要，尤其是在高压和低温下观察到偏离理想行为的情况。理解这个常数对于从事各种应用中气体工作的科学家和工程师至关重要，从设计发动机到研究大气现象。在实际应用中，“普适气体常数”有助于预测气体在温度和压力变化时的反应。例如，如果你有一个充满空气的气球并加热它，气体的温度会升高，导致压力也上升。通过应用理想气体定律并结合“普适气体常数”，可以计算气球在这些条件下体积的变化。此外，“普适气体常数”不仅限于理想气体。它在涉及气体的各种化学反应中也起着重要作用。例如，在化学计量计算中，“普适气体常数”帮助化学家确定产生特定体积气体所需的反应物数量或从给定反应中产生的气体量。这在制药等行业中尤为重要，因为精确的测量对于产品质量和安全至关重要。总之，“普适气体常数”是理解气体行为的关键元素，在理论和实际应用中都是不可或缺的。从理想气体定律到涉及气体反应和工程设计的现实场景，“普适气体常数”提供了对气体如何与环境相互作用的基础理解。随着我们继续探索热力学的复杂性，“普适气体常数”的重要性无疑将继续成为科学探究和创新的基石。