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提出了用于估算典型离子化合物标准熵的双参数模型。此模型可以用来估算由碱金属、碱土金属与氧族元素和卤族元素组成的离子化合物的标准熵。模型通过回归求解给出了估算时各元素的估算参数值。由此模型估算离子化合物的标准熵时,平均误差为2.473J.mol-1.K-1,标准差为3.274J.mol-1.K-1。模型估算误差符合正态分布,并且在与离子束缚模型等估算模型比较中显示了较高的精确度,优于现有的其他估算方法。
A two-parameter model for estimating the standard entropy of typical ionic compounds is proposed. This model can be used to estimate the standard entropy of ionic compounds consisting of alkali metals, alkaline earth metals and oxygen and halogen elements. The model gives the estimated parameters of each element in the estimation by regression. The model estimated the standard entropy of ionic compounds, the average error of 2.473J.mol-1.K-1, the standard deviation of 3.274J.mol-1.K-1. The model estimation error is in accordance with the normal distribution and shows a higher accuracy in comparison with estimation models such as the ion binding model and is superior to other existing estimation methods.