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ID:28487365
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页数:6页
时间:2018-12-10
《胶体与表面化学试题》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、一、是非题1.表面超量的英文具体描述:Thesurfaceexcessofsoluteisthatthenumberofmolesofsoluteinthesamplefromthesurfaceminusthenumberofmolesofsoluteinthesamplefromthebulkunderaconditionofthesamequantityofsolventorthesurfaceexcessofsolventhasbeenchosentobezero.2.囊泡的形成途径:Thefina
2、lsurfactantstructuresweconsiderasmodelsforbiologicalmembranesarevesicles.Thesearcsphericalorellipsoidalparticlesformedbyenclosingavolumeofaqueoussolutioninasurfactantbilayer.Vesiclesmaybeformedfromsyntheticsurfactantsaswell.3.絮凝与聚焦之间的区别:Coalescence:theproc
3、essthatmanysmallparticlestaketogethertoformanewbigparticle,totalsurfaceareaofthedispersionsystemdecreases.Aggregation:theprocessbywhichsmallparticlesclumptogetherlikeabunchofgrapes(anaggregate),butdonotfuseintoanewparticle,totalsurfaceareaofthedispersionsy
4、stemdonotdecreaseaswell.4.胶micelle:Amonophasic,fluid,transparent,isotropicandthermodynamicallystablesystemcomposedbysurfactantandwater,theparticlehassomelineardimensionbetween109-10"6m.5•乳液emulsion:Amultiphasic,no-transparentandthermodynamicallyunstablesys
5、temcomposedbysurfactant,cosurfactant,oilandwater.6•微乳液microemulsion:Amonophasic,fluid,transparent,isotropicandthermodynamicallystablesystemcomposedbysurfactant,cosurfactant,oilandwater.7.囊泡vesicle:能不能直接从双联续制备转换过来?(a/)8.憎水溶胶亲水溶胶连续相与分散扣有没有明显界限?(没有)9.胶朿体系的稳定性
6、与哪些因素有关?与哪些因素无关?10.瑞利散射:条件粒子人小11.表而吸附超物理意义溶剂的兌是不是都为零?(x)12.TEM、SEM都需要把样品放入真空屮,最后结果都可以表明原来分散度。(x)13.在Langmuir膜、LB膜单层理想气体方程式;能否用理想气体乂系式描述?(能)二、多项选择题1.表面吉布斯ft由能:TheGibbsequation:multicomponentsystemsG=Vdp-SdT+IjL/.dn,+AdyFromGibbs-Duhenequation:[pidni=0注:G=Ga
7、+Gfi+GS;G=E+pV—TS+〉;iGs=ES^yA-TSs;■IdG=(dE+pdV+Vdp-TdS-SdT+打,*)+Ady+}dA;(X扎S'•IdG=X(Vdp-SdT+EaA+SV/A_和醐.Pv)+Ady+jdA•’Gift's/idG=(Vdp-SdT+^pidni+z/'yZ//'.)+Ad/;a扎siidG=Vdp-SdT+^/nidni1.儿个半径之间的相互关系:MartinDiamctcr8、urfaceAverageDiameter(ds)
8、urfaceAverageDiameter(ds)
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