正常沸点

DSC法测定氮酮的汽化焓和正常沸点

The determination of vaporization enthalpy and normal boiling point of AZONE with DSC

低温液体定义为正常沸点在–240°F（–150°C）以下的液体。

A cryogenic liquid is defined as a liquid with a normal boiling point below - 240 f ( - 150 c ) .

本方法所需数据为：液体密度、Z（RA）值及正常沸点下蒸发焓。

The data required in the method are : liquid density , Z_ ( RA ) and vaporization enthalpy at normal boiling point .

提出了估算正常沸点下蒸发焓ΔHvb和沸点Tb的表达式，并分别用503种和669种有机化合物拟合出了相应的基团参数。

Expressions for estimating enthalpy of vaporization at normal boiling point Δ H_ vb and boiling point T_b were established , with the numerical values of relative group parameters obtained by fitting data from 503 and 669 organic compounds respectively .

用分子热力学方法建立了纯物质汽液平衡的推广vanderwaals模型，并据此得到了一个计算正常沸点下液体蒸发焓的方程.它只含有一个与分子大小有关的参数。

An augmented van der Waals model of VLE of the pure compounds has been established by the molecular thermodynamic method , and an equation of calculating the enthalpy of vaporization at the normal boiling point is obtained from this model , which contains only a molecular size-dependent parameter .

水正常沸点为372.4K，水的平均汽化热为42.93kJ/mol，其与文献值的相对误差分别为0.03%、-0.07%。

The normal boiling point of water is 372 . 4K , vaporization heat 42.93kJ/mol . Compared with documented values , the relative errors are respectively 0.03 % and - 0.07 % .

非正常沸点下纯物质汽化潜热的计算

Calculation of Vaporization Heat of Pure Substances at Non-Normal Boiling Point

正常沸点下液体汽化热的计算

Calculating heat of vaporization of liquid at normal boiling point

由正常沸点估算烃类物质的蒸汽压

Predicting the vapor pressures of hydrocarbons from normal boiling points

计算正常沸点下液体摩尔体积的基团贡献法

Group contribution method for calculating molar volume of liquids at normal boiling point

式中只有一个仅与分子大小有关的特性参数，该参数与正常沸点下液体摩尔体积有很好的线性关系。

It is found that this parameter has good linear relation with the molar volume of liquid at normal boiling point .

分子热力学前沿基础研究领域中的新理论10：分子间力相对值的研究与纯质正常沸点理论方程

In the leading basic research of molecular thermodynamics new theory 10 : a theoretical equation of the normal boiling point for hydrocarbons and carboxylic acids

研究表明烃类组分水合物的形成与烃的摩尔质量相关，同时也表明水合物形成条件与正常沸点紧密相关。

In light of the research results it is shown that the formation of various hydrocarbon component hydrates is correlated to molal weight and to normal boiling point .

这个参数的值与正常沸点下液体的摩尔体积成正比，且具有基团加和性。

It is found that the parameter is directly proportional to the molar volume of liquid at the normal boiling point , and its values have the additivity of groups .

通过对10种高沸点有机物的蒸气压估算后得到的结果显示，新的蒸汽压估算方程虽然仅仅用到了正常沸点这一个参数，但得到总平均误差仅为1.17%。

The estimating result of ten high boiling organic compounds show that although the method just use the normal boiling point Tb , the total error is 1 . 17 % .

利用作者提出的正常沸点下纯物质汽化潜热计算式，可以计算非正常沸点下纯物质汽化潜热。

The formula proposed by the author to calculate vaporization heat of pure substances at normal boiling point can also be used tocalculate that of pure substances at non-normal boiling point .