nernst equation

简明释义

能斯脱方程

英英释义

例句

1.To calculate the equilibrium potential of a cell, we can use the nernst equation (能斯特方程).

为了计算细胞的平衡电位，我们可以使用能斯特方程。

2.The nernst equation (能斯特方程) helps us understand how ion concentrations affect membrane potential.

能斯特方程 帮助我们理解离子浓度如何影响膜电位。

3.The nernst equation (能斯特方程) provides a quantitative way to predict ion movement across membranes.

能斯特方程 提供了一种定量方法来预测离子穿过膜的运动。

4.In electrochemistry, the nernst equation (能斯特方程) is essential for determining cell potentials.

在电化学中，能斯特方程 对于确定电池电位是必不可少的。

5.When studying neuronal activity, the nernst equation (能斯特方程) is used to calculate the reversal potential.

在研究神经元活动时，能斯特方程 用于计算反转电位。

作文

The Nernst equation is a fundamental equation in electrochemistry that describes the relationship between the concentration of ions in a solution and the electrical potential across a cell membrane. This equation is named after the German chemist Walther Nernst, who developed it in the late 19th century. Understanding the Nernst equation is crucial for various fields, including biology, chemistry, and engineering, as it provides insights into how cells generate energy and how various chemical reactions proceed under different conditions.At its core, the Nernst equation can be expressed mathematically as E = E° - (RT/nF) ln(Q), where E is the cell potential, E° is the standard cell potential, R is the universal gas constant, T is the temperature in Kelvin, n is the number of moles of electrons transferred in the reaction, F is Faraday's constant, and Q is the reaction quotient. This equation essentially allows us to calculate the voltage produced by a galvanic cell based on the concentrations of the reactants and products involved in the electrochemical reaction.One of the most significant applications of the Nernst equation is in determining the equilibrium potential for individual ions across a membrane. For instance, in biological systems, the Nernst equation helps to explain how neurons generate action potentials. Neurons rely on the movement of sodium (Na+) and potassium (K+) ions across their membranes to create electrical signals. By applying the Nernst equation, we can calculate the equilibrium potential for these ions, which is essential for understanding how signals are transmitted in the nervous system.Moreover, the Nernst equation also plays a vital role in battery technology. In batteries, chemical reactions produce electrical energy, and the Nernst equation helps predict how changes in concentration and temperature can affect the battery's performance. By optimizing these factors, engineers can design more efficient batteries with higher energy densities and longer lifespans.In summary, the Nernst equation is not just an abstract concept; it has practical implications in various scientific and engineering disciplines. Its ability to relate concentration and electrical potential makes it a powerful tool for understanding electrochemical processes. Whether one is studying cellular biology, working on new battery technologies, or conducting research in physical chemistry, a solid grasp of the Nernst equation is indispensable. As science continues to advance, the importance of this equation will only grow, paving the way for new discoveries and innovations in numerous fields.

Nernst方程是电化学中的一个基本方程，它描述了溶液中离子浓度与细胞膜电位之间的关系。这个方程以德国化学家瓦尔特·能斯特（Walther Nernst）的名字命名，他在19世纪末开发了这个方程。理解Nernst方程对生物学、化学和工程等多个领域至关重要，因为它提供了细胞如何产生能量以及各种化学反应在不同条件下如何进行的见解。从本质上讲，Nernst方程可以用数学公式表示为E = E° - (RT/nF) ln(Q)，其中E是电池电位，E°是标准电池电位，R是通用气体常数，T是开尔文温度，n是反应中转移的电子摩尔数，F是法拉第常数，Q是反应商。这个方程基本上允许我们根据参与电化学反应的反应物和产物的浓度来计算由电池产生的电压。Nernst方程的一个重要应用是确定个别离子跨膜的平衡电位。例如，在生物系统中，Nernst方程有助于解释神经元如何产生动作电位。神经元依赖于钠（Na+）和钾（K+）离子穿过其膜的运动来产生电信号。通过应用Nernst方程，我们可以计算这些离子的平衡电位，这对于理解信号在神经系统中的传递至关重要。此外，Nernst方程在电池技术中也发挥着重要作用。在电池中，化学反应产生电能，而Nernst方程有助于预测浓度和温度的变化如何影响电池的性能。通过优化这些因素，工程师可以设计出更高效、能量密度更高、使用寿命更长的电池。总之，Nernst方程不仅仅是一个抽象概念；它在多个科学和工程学科中具有实际意义。它将浓度和电位联系起来的能力使其成为理解电化学过程的强大工具。无论是研究细胞生物学，还是致力于新电池技术，或是在物理化学领域进行研究，扎实掌握Nernst方程都是不可或缺的。随着科学的不断进步，这个方程的重要性只会增加，为各个领域的新发现和创新铺平道路。