焓变

吸附反应的焓变ΔHom和熵变ΔSom均小于零，为放热反应，反应向更有序状态进行；

The thermodynamic standard enthalpy change Δ H ~ o_m and entropy change Δ S ~ o_m of adsorption reaction were both below zero , suggesting that adsorption reaction was an exothermic one and tended to be more in ordered state .

本文提出，多重化学反应自由焓变、平衡常数的一步计算法，可在金属冶炼和诸多化学领域中广泛的应用。

This article introduces one-step calculating method of multi-chemical reactions free enthalpy change and equilibrium constant and its application in metal smelting and other many chemical fields .

光声量热法测定辅酶B（12）光解的焓变和体积变化

Determination of Enthalpy and Volume Changes in Photolysis of Coenzyme B_ ( 12 ) Using Photoacoustic Calorimetry

谈焓变和熵变对自发过程的影响及其对△G的相对贡献

A Discussion on the Effect of Enthalpy and Entropy Change upon Rational Process and Its Relative Contribution

采用DSC测量PEG（10000）熔融焓变测定条件的研究

Study on Test Conditions of the Melting Enthalpy about PEG_ ( 10000 ) Measured by Using DSC

计算了TRPO萃取Fe（Ⅲ）的反应焓变ΔH，熵变ΔS及表观平衡常数K。

The H , S and apparent equilibrium constant K of the reaction that Fe ( III ) is extracted by TRPO have been calculated .

复合材料Mg/MWNTs氢化物的焓变和熵变的绝对值均低于纯Mg，分别降低了10.51%和3.50%；

The absolute values of enthalpy variable and entropy variable for the composite Mg / MWNTs hydride are lower about 10.51 % and 3.50 % than that of pure Mg .

P-V图上直线准静态过程中的焓变与熵变

Changes of enthalpy and entropy in the quasi-static process as a straight line in the P-V chart

Lu（Et2dtc）3（phen）的生成反应焓变、摩尔热容和恒容燃烧能测定（英文）

Determination of Enthalpy Change of Reaction of Formation , Molar Heat Capacity and Constant-Volume Combustion Energy of the Ternary Solid Complex Lu ( Et2dtc ) 3 ( phen )

由CPR与HSA反应焓变、熵变，确定CPR与HSA的结合主要是静电引力。

The interaction between CPR and HSA was attributed to static - electricity gravitation which was confirmed by the calculation results of enthalpy and entropy for this reaction .

Langmuir吸附等温线、相对吸附容量以及等量吸附焓变表明，苯乙酸在AH树脂上的吸附是物理吸附和化学吸附共同作用的结果。

The Langmuir adsorption isotherm , relative adsorption capacity and isosteric adsorption enthalpy indicate , the adsorption for phenylacetic acid on AH resin is the coefficient result with physical adsorption and chemical adsorption .

本文对MTP反应体系进行了热力学分析，计算了各反应在不同温度下的反应焓变和吉布斯自由能变。

Thermodynamic analysis of the methanol to propylene reaction has been carried out . For each reaction enthalpy and Gibbs free energy at varying temperatures were presented .

在一个大气压和298.15K的条件下用统计热力学的计算方法来计算负焓变，其结果显示整个包合是一个熵焓驱动过程。

The negative enthalpy changes calculated from the statistical thermodynamic calculations at 1 atm and 298.15K suggest that the inclusion complexes are favored enthalpy-driven processes .

保温时间对Al-Si合金内各相初始凝固温度的影响也很小，而凝固焓变值随保温时间的延长经历了由小变大再变小的过程。

Holding time also has a little of effect on initial precipitation temperature of all kinds of phases in the Al-Si alloy , the solidification caloric value changes from small to big and then to small as the holding time extends .

FEM模拟的控制方程是基于焓变的Fourier导热方程。模拟结果为开模循环周期20s的温度场，几何中心与浇道等铸件特定部位的温度时间曲线。

The FEM was theoretically governed by the enthalpy-based Fourier heat conduction equation , and the results were provided in the form of temperature distribution at the time of die-opening cycle of 20 s , and temperature versus solidifying time relations at gating system and geometric center .

热力学曲线表明IIP-PAA/SiO2对Cu2+的吸附平衡符合Langmuir吸附等温方程，IIP-PAA/SiO2的热力学参数焓变为负，吸附的吉布斯自由能△G0为负值。

The thermodynamic curves showed that adsorption equilibrium data of IIP-PAA / SiO2 was fitted by the Langmuir isotherm model . The thermodynamic parameters enthalpy of IIP-PAA / SiO2 was negative , free energy of adsorption Gibbs was negative .

另外，TTMA修饰的金纳米粒子与BLGA/BLGB结合焓变是正值，说明整个结合过程是熵驱动的。

Additionally , enthalpy for binding of BLGA / BLGB and TTMA modified gold nanoparticle was positive indicating that the binding process was entropy driven .

结果表明，贝加因可静态猝灭BSA的内源荧光；二者相互作用的焓变和熵变均大于零，说明疏水作用力是二者之间的主要作用力。

Results indicate that baicalein is able to quench the intrinsic fluorescence of BSA via static quenching mechanism . The changes of enthalpy and entropy for the reaction of baicalein and BSA are both above zero , which indicates that their interaction is dominated by intermolecular hydrophobic force .

乙酰乙酸乙酯（EAcAc）能够与Al2O3胶体颗粒表面的-Al-OH基团发生螯合作用从而降低Al2O3胶体颗粒的反应活性，并显著缩小固液相之间的界面差异，使体系的Gibbs焓变下降。

It was indicted that ethylacetoacetate ( EAcAc ) can chelated with - Al-OH groups on the surface of the colloidal particles , depressing the activity of the colloidal particles , reducing the interphase distinction between the solid and liquid phase remarkably , lowering the change of Gibbs enthalpy .

除以纯的溶剂蒸发的焓变。

Divided by delta H of vaporization of the pure solvent .

采油中的润湿热、粘附功和吸附焓变

Wetting heat , adhesion work and adsorption enthalpy increment in oil recovery

测得萃取反应的焓变及热力学函数均为负值，表明该萃取反应是放热过程。

It shows that this reaction is an exothermal process .

焓变与熵变对化学反应的影响

Environmental Change and the Change in Enthalpy Versus Chemical Reations

化学冷铁&焓变涂料的研究

Study on Enthalpy-Change Coating ── Chemical Chill

粉体接触角法快速测定长江口沉积物的表面自由焓变

Measuring Surface Free Enthalpy Change of Sediment of Chang Jiang River with Contact Angle Method

研究了苯并口恶嗪二苯醚树脂固化时的体积收缩率、固化温度和固化焓变等。

Curing shrinkage , temperature and curing enthalpy of benzoxazine based on diphenyl oxide resin were investigated .

一种城市热环境质量评价方法&空气焓变质量指数

An Evaluation Method for the Quality of Urban Hot Environment - Air Total Heat Change Quality Index

焓变涂料激冷作用的大小，取决于基料物质比焓变的大小以及涂层厚度等因素。

The chill effect is found to depends upon the enthalpy change of the base materials and coating depth .

聚合物形成共混体系的相容性的预测能够通过聚合物间溶度参数或混合焓变来实现。

The compatibility forecast of polymer blend systems can be performed by the solubility parameter or the mixing enthalpy .

测定了分离过程的熵变、焓变和自由能变化。

Changes of entropy , enthalpy and Gibbs free energy in the process of imprinted - separation were analyzed .