Insights from the venerable Trouton’s Rule have been used to guide the development of an applied-thermodynamic method for the estimation, correlation, and evaluation of pure-component vapor pressure. Trouton’s Rule very simply and succinctly states that the entropy of vaporization of fluids at their normal boiling point is a constant (≈10.5 times the gas constant). Detailed evaluation of the data for many families of chemical compounds reveals the subtle patterns of departures from the rule, and facilitates the development of a useful new correlation. Several examples are presented to demonstrate the value of the new correlation to estimate, correlate, extrapolate, and evaluate vapor-pressure data, and to understand the patterns of vapor-pressure behavior. The methodology provides a guide for the development of thermodynamic correlations, and the resulting correlations are expected to be useful for the practice of applied thermodynamics.

中文翻译：

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纯组分蒸气压的估计，相关和评估的修正Trouton规则

来自古老的特劳顿法则的见解已被用来指导应用热力学方法的发展，以进行纯组分蒸气压的估计，相关和评估。特劳顿法则非常简单明了地指出，流体在其正常沸点下的汽化熵是一个常数（约为气体常数的10.5倍）。对许多化合物家族数据的详细评估揭示了偏离规则的细微规律，并促进了有用的新关联的发展。给出了几个示例，以证明新的相关性的价值，以估计，关联，外推和评估蒸气压数据，并了解蒸气压行为的模式。该方法学为开发热力学相关性提供了指南，