化工热力学-期中复习题

《化工热力学-期中复习题》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、习题课ApplicationofGibbs-DuhemEquation1.ForaparticularbinarysolutionatconstantTandP,thepartialmolarvolumeforspecies1and2arepresentedbythefollowingequations:WhereV1andV2arethemolarvolumeofpurespecies1and2,andtheaandbarefunctionsofTandP.Showwhethertheseequa

2、tionsaretruewiththethermodynamictheory.Gibbs-DuhemEquation的应用1.有人提出用下列方程组来表示恒温、恒压下简单二元体系的偏摩尔体积：式中：V1和V2是纯组分的摩尔体积，a,b只是T,P的函数。试从热力学的角度分析这些方程是否合理？ApplicationofGibbs-DuhemEquationconstT,P:ApplicationofGibbs-DuhemEquationThesetwoequationsarenottrue.Solutio

3、nproperty—Partialmolarproperty2.Foragasmixturethevolumeisgivenby:wherebisthefunctionofcompositiononly,andwherebiisindependentofPandcomposition.Findtheexpressionsforthefollowingvariables.(1),(2),(3),(4).溶液性质—偏摩尔性质2.某类气体的容量性质由下式表示:式中b为组成的函数。对于混合物:i组分的b值为

4、bi，与P，x无关，试推导下列表达式:(1),(2),(3),(4).Solutionproperty—PartialmolarpropertySolution：(1)Thefollowingequationhasbeendevelopedinproceedingcourses:SolutionSolutionSolutionSolutionThermodynamicproperties3.Justify(证明):Solution:whereHeatcapacityig：rg:Heatcapacit

5、y