非理想稀溶液中溶质化学反应达平衡时化学反应等温式的探讨

Reaction Isotherm of Non-Ideal Dilute Solution When Solute Reaction Reaches Equilibrium

物理化学中化学平衡一节关于非理想稀溶液中溶质化学反应,当反应达到平衡时的化学反应等温式中,在讨论标准平衡常数时并未提及所对应的标准态的组成表示,因此很多初学者会忽略组成表示的选取而直接计算标准平衡常数导致计算结果产生偏差,所以建议在反应达平衡时化学反应等温式中的与的公式中分别用下角标标注出相应的组成的表示,以便使初学者更容易的记忆和使用公式。

There are many formulas with complex conditions in physical chemistry,and the derivation procedure of these formulas is very complicated,and in the derivation process,it is often necessary to introduce many conditions,so the conclusion is usually limited by many conditions,which undoubtedly aggravate the difficulty of student’learning of it,especially for beginners,who have great difficulty in memorizing the formulas,let alone in the application of them.The reaction isotherm is always discussed when the chemical reaction of solutes is equilibrium in non-ideal dilute solutions.But the concentration in the standard state is not specified in the reaction isotherm formula,therefore,the selection of concentration expression is often ignored by beginners,leading to the deviation of the calculation result when they calculate the standard equilibrium constant through standard mole Gibbs free energy.Therefore,it is suggested that the concentrations are indicated in subscripts in the standard equilibrium constant and standard mole Gibbs free energy in the reaction isotherm formula separately,in order to give the beginners certain help in the process of study,it also helps them memorize and use the formulas.